Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # S-88_30-88 Date: 120926
Body - License Plate Bracket Installation Precautions
Date: September 26, 2012
Order No.: S-B-88.30/88
Group: 88
SUBJECT: MY-All, Models All
License Plate Bracket
To avoid seized license plate bolts on the trunk lid, only use the screw in Parts Information below. Use this part with a riveted nut.
Carefully ensure that the screw/bolt is tightened to a torque of 4 Nm.
Parts Information
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # S-28_00-12 Date: 120926
A/T - 722.96 Transmission Group 28 Damage Code Changes
Date: September 26, 2012
Order No.: S-B-28.00/12
Group: 28
SUBJECT: Transmission 722.96
Design Group 28 Damage Code Changes
For better assignment of fault types in warranty processing, damage code 28001 must be used for all complaints on transfer case (e.g. bearing
damage, fault type G5).
Fault type:
^ 47 corroded/oxidized
^ A4 stretched
^ D6 sluggish
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 2
^ F4 no power flow
^ G5 noises in complete vehicle speed range
For damage code 28224 helical gear set/spur gear set, the fault type "36 noises" is replaced by "46 howling" (this fault type is to be used, for
example, for gear set howling).
Fault type:
^ 06 broken
^ 46 howling
^ D1 worn
^ D3 worn out
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI82-10_P-0517692 Date: 120905
Lighting - Headlamp Unit Fogged/Droplets Forming
Lamp unit fogged/droplets forming
Topic number LI82.10-P-051769
Version 2
Design group 82.10 Exterior lights
Date 09-05-2012
Validity All models
Reason for change New repair method
Complaint
Lamp unit fogged or droplets forming.
Cause
Due to the vent openings, the lamp unit is an "open system".
This means that acidic gases, moisture, dirt and exhaust gases can penetrate it.
This can result in deposits on the diffuser and lens.
Remedy
Check housing cover of lamp unit for natural fogging or dew as per LI82.10-P-050139.
1. If a reduction in the degree of fogging is visible, the pressure compensation membrane can be inserted after complete evaporation of the dew.
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 3
2. If no reduction in the degree of fogging is visible, the lamp unit is defective and must be replaced.
However, the cover with the pressure compensation membrane should also be attached in this case.
Note:
Residual fogging is possible due to the laws of physics and is OK.
Fogging does not impair the functionality or the service life of the lamp unit.
Pressure compensation membranes should always be used on both lamp units.
Attach housing cover with pressure compensation membrane:
1. Remove lamp unit
2. Remove all vent opening grommets.
3. Seal vent openings with sealing profile.
Important:
All openings must be sealed carefully for the pressure compensation membrane to work properly!
4. Insert housing cover with pressure compensation membrane.
5. Install lamp unit.
W/S 204 Attach pressure compensation membrane to housing cover of lamp unit:
1. Remove lamp unit
2. Remove all vent opening grommets.
3. Seal vent openings with sealing profile.
Important:
All openings must be sealed carefully for the pressure compensation membrane to work properly!
4. Remove housing cover of lamp unit.
5. Drill and deburr three holes in the housing cover of the lamp unit as per the template (see attachment).
6. Glue on the pressure compensation membrane.
Bonding note:
The substrate must be free of dust and grease.
7. Reattach housing cover of lamp unit.
8. Install lamp unit.
File Designation
Symptoms
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 4
Parts
Operation numbers/damage codes
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 5
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # S-83_30-136 Date: 120815
A/C - A/C Sealant
Date: August 15, 2012
Order No: S-B-83.30/136
Group: 83
SUBJECT: MY-All, Models All
A/C Sealant
If refrigerant circuit becomes leaky while under warranty, do not apply sealant. This can lead to contamination of the air conditioning service unit
and damage the vehicles refrigerant circuit.
The damaged part must always be determined using the usual inspection procedures and replaced by a genuine Mercedes-Benz new part.
Returned components that have been contaminated, damaged or clogged by sealant will not be covered under warranty.
NOTE:
If sealant is in the refrigerant circuit of the air conditioning system, this cannot be determined before the refrigerant is extracted. To determine if
sealant has been used in previous repairs, look for an adhesive label affixed to the engine compartment of the vehicle Protective devices for air
conditioning service units are offered by some manufacturers. They must be requested from the manufacturer of the air conditioning service unit.
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # S-30_30-67 Date: 120815
Collision Avoidance - Short Range Sensor Replacement Info.
Date: August 15, 2012
Order No: S-B-30.30/67
Group 30
SUBJECT:
MY-All, All Models with Code 233 Distronic Plus, Code 234 Blind Spot Assist and Code 237 Active Blind Spot Assist
Short-Range Radar Sensors
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 6
Short-range sensors must not be replaced for a "Malfunction through external transmitter influence" event entry.
Any returns of short-range radar sensor (NBR) must include the control unit log. If diagnosis printouts are not included with parts, the warranty
claim will be denied.
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI54-21_P-053525 Date: 120731
Engine Controls - MIL ON And DTC 2060 Stored
Active engine diagnosis warning lamp (CEL) due to fault code 2060
Numero de tema LI54.21-P-053525
Version 1
Grupo de construccion54.21 Control modules/module
Edicion 07-31-2012
Validez Valid for vehicles with engine 272 and code 917 = PZEV (Premair sensor B11/15) (model 204 and 212)
Reclamacion:
Engine diagnosis warning lamp lights up in instrument cluster.
Models 204 and 212: Fault code 2060 (fault text: The PremAir sensor has a malfunction) in fault memory of gasoline engine control unit.
The engine does not display any problems with engine running characteristics.
Causa:
In borderline cases a data entry error in the software of the gasoline engine control unit results in the entry of these fault codes
In most cases this relates to short leisure light acceleration driving conditions when the engine might not reach the operating temperature at a
predefined pace excepted by the ME software.
Remedio:
The ME software update is available.
It can be downloaded from the following location: STAR TekInfo/Star Diagnosis/Downloads - Premair Sensor File Download
Sintomas
Unidad de control/codigo de averia
Unidades de trabajo
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # S-54_10-255 Date: 120703
Battery - Battery Charging Information
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 7
Date: July 3, 2012
Order No.: S-B-54. 10/255
Group: 54
SUBJECT:
MY-All, All Models Charge Battery
Correct charging of the on-board electrical system battery, starter battery, and buffer battery helps to ensure that the vehicle continues to start,
functions properly, and has optimal battery life. Therefore please remember that all batteries >/= 12 Ah must be charged in the way described in
AR54.10-P-1130CW.
The battery charging period depends on the charge level of the battery.
The battery must be charged using an approved charger (see SSEP catalogue located under "MB Equipment" menu of STAR TekInfo).
The battery is sufficiently charged when the charging current reading is < 25 A. Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI83-55_P-0534652 Date:
120615
A/C - Howl, Rattle Noise From Engine Compartment
Howling, rattling noise from engine compartment
Topic number L183.55-P-053465
Version 2
Design Group 83.55 A/C compressor
Date 06-15-2012
Validity Model series 204 and 207 with Valeo refrigerant compressor
Reason for change Model Validity Changed
Complaint:
1. Howling noise from engine compartment.
2. Rattling noise from engine compartment.
Attachments
Cause:
1. Wear of rubber damper on Valeo refrigerant compressor.
2. Wear of bearing of belt pulley on refrigerant compressor.
Remedy:
Replacement of belt pulley on refrigerant compressor, see WIS document AR 83.55-P-7685C.
Pay attention to the correct type of refrigerant compressor (Valeo, see picture) and the associated belt pulley diameter (110 mm or 120 mm).
Symptoms
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 8
Parts
Work units
Attachment
Defect free rubber damper/Valeo refrigerant compressor
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 9
Torn rubber damper
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI82-85_P-0479912 Date: 120612
Audio/COMAND(R) - Volume In AUX Menu Is Erratic
Audio AUX: Volume of AUX Audio Source Is Too Quiet
Topic number L182.85-P-047991
Version 2
Design Group 82.85 Navigation and communication systems (CNS, ICS, COMAND, FleetBoard)
Date 06-12-2012
Validity Model 204.0, 204.2, 207, 212 with code 523, 510, 525, 511, 527 or 512 and 808, 809, 800 or 801 (NTG4)
Model 204.9 with code 523, 510, 525, 511 527 or 512 and 808, 809, 800, 801 or 802 (NTG4)
Model 169,245, 171,230,211,219, 164,251 and 203.7 with code 525, 511 527 or 512 and 809, 800 or 801 (NTG2.5)
Model 463 with code EU1 (NTG2.5)
Reason for change Validity adapted
Complaint:
Different volume levels between AUX IN and radio or CD/DVD playback. During audio playback from an external MP3 player via the AUX jack,
the volume in the vehicle is too quiet. When switching from the AUX source to radio or CD/DVD the volume is too loud and must be turned down
by the customer. Traffic announcements are also too loud when an AUX audio source is active.
Cause:
The volume level of the MP3 player is too low.
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 10
Remedy:
Update the software in the head unit with DAS / Xentry Diagnostics.
Note:
As of the software releases listed below, the customer can choose between "Standard" and "Boost Mode" in the "Volume" menu in the AUX
application. In vehicles with SA code 518 [Media interface (N125/1)], software 08.47 is required in the media interface control unit (N125/1) for
this new function. This software update is launched automatically after the head unit software update.
Model 204
In vehicles as of model year 2010 (SA code: 800; series production breakpoint 06/2009) an adjustment option for the AUX source is implemented in
all head unit versions.
^ Audio 20 as of software 09.12
^ COMAND APS as of software 09.09
This software is available for vehicles up to and including model year 2009 (SA code 809) as of telematics CD version 09/2009 (A204 827 71 59
USA).
Note:
The "Boost Mode" feature is not available in Audio 20 units with hardware object numbers A 204 870 00 89 and A 204 870 02 89.
Model 212, 207
In vehicles as of model year 2011 (SA code: 801; series production breakpoint 06/2010) an adjustment option for the AUX source is implemented in
the COMAND APS.
This function is not available in the Audio 20.
^ COMAND APS as of software 10.20
This software is available for vehicles up to and including model year 2010 (SA code 800) as of telematics CD version 07/2010 (A 212 827 55 59).
Model 245, 171, 230, 211, 219, 164, 251, 463, 203.7
In vehicles as of model year 2010 (SA code: 800; series production breakpoint 06/2009) an adjustment option for the AUX source is implemented in
the COMAND APS. This function is not available in the Audio 20.
^ COMAND APS as of software 09.02
This software is available for vehicles up to and including model year 2009 (SA code 809) as of telematics CD version 06/2009 (A1 71 827 40 59).
Symptoms
Work units
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI82-10_P-0534392 Date: 120612
Lighting - 'High Beam Assist Inoperative' Message Appears
High Beam Assist temporarily inoperative
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 11
Topic number LI82.10-P-053439
Version 2
Design Group 82.10 Exterior lights
Date 06-12-2012
Validity MODEL 204.###, 212###, 207.###, 221.###, 215.###, 218.###, 166.### with SA code 608 (High Beam Assist) and not 513/476/238 Affected production period: 01.08.2010 - 31.01.2011 or01.05.2011 - 30.08.2011
Reason for change SA code restricted
Complaint:
When the High Beam Assist is activated a "High Beam Assist inoperative" message appears in the instrument cluster.
Switch-on conditions for High Beam Assist:
- High Beam Assist in instrument cluster menu "On"
- Multifunction switch set to high beam position
- Light sensor detects "Night"
Cause:
In isolated circumstances, it can happen that the multifunction camera fails to log into the data bus CAN in the temperature ranges (23 °F to + 41 °F
and 68 °F to 86 °F). A fault code entry is not made. Following a renewed ignition sequence and a change in component temperature, the system is
operational again.
Remedy:
Replace MFK and calibrate with the aid of the "calibration target for Night View Assist" special tool (W 000 589 01 20 00).
Symptoms
Parts
Work units
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI28-10_P-0519352 Date: 120522
Drivetrain - Oil Leak At Seam Between A/T And Transfer Case
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 12
Oil leakage at transfer case of automatic transmission 722.96x
Topic number LI28.10-P-051935
Version 2
Design group 28.10 Complete transfer case
Date 05-22-2012
Validity Veh. with transmission model 722.96x up to transmission sequence no.: 2.741.558
Reason for change Revision of damage code & OK transmission sequence
number added.
Complaint:
Oil leakage at the seam between the automatic transmission and the transfer case.
Leakage can occur around the entire seam.
Attachments
Cause:
Leakage at automatic transmission/transfer case flange.
Remedy:
Sealing with black sealant (Loctite 5970) only if there is definite droplet formation in the vicinity of the seam or in the vicinity of the propeller shaft
to the front axle transmission.
If the problem is a "sweating" leak, sealing must not be carried out, as this is a normal phenomenon inherent in the design of oil-filled systems.
In accordance with the WIS instructions in the attachment, disassemble the transfer case housing and seal it using black sealant A003 989 98 20
(Loctite 5970).
Symptoms
Parts
Work units
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 13
WIS-References
Attachments
Sample picture showing sweating
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 14
Sample picture showing leakage
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI27-57_P-0534962 Date: 120522
A/T - ECO Start/Stop Inoperative, DTC P0944 Stored In TCM
ECO start/stop inoperative, fault code P0944 in transmission control unit
Topic number LI27.57-P-053496
Version 2
Design group 27.57 Oil pump
Date 05-22-2012
Validity NAG2 FEPlus (722.9) with auxiliary oil pump with code B03 up to transmission sequence number 7.248.200
Reason for change Model series 251 deleted because model series 251 does not have ECO start/stop.
Complaint:
ECO start/stop inoperative, fault code P0944 in transmission control unit.
Attachments
Cause:
Check valve in torque converter housing may be damaged. Leakage between torque converter housing and auxiliary oil pump.
May affect transmissions with transmission sequence numbers starting with -07-xxx xxx.
Remedy:
Access via fault code P0944; and perform there the following test according to the instructions:
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 15
Check the check valve in the torque converter housing (in pressure duct) for damage (see pictures in attachment).
If the check valve is damaged, the torque converter housing and the auxiliary oil pump (component M42) must be re-placed. When
removing/installing the automatic transmission auxiliary oil pump, observe AR 27.30-P-0651EL.
Important note:
After the test/repair, check and correct the oil level in the transmission.
If no damage is found on the check valve, but a torque converter housing with object number 212 271 0401 is installed and the transmission
sequence number is lower than 3.491.853, then please create a PTSS.
If the fault code is no longer present, perform the following test steps.
Step 1: Check auxiliary oil pump connector and fuse
Step 2: Check supply voltage
Step 3: Check CAN lines
Step 4: Check VGS software and update if necessary, then continue with step 5
Step 5: Visual inspection of check valve; the valve is located in the torque converter housing (see pictures in attachment)
If the check valve is damaged, the torque converter housing and the auxiliary oil pump (component M42) must be re-placed.
Step 6: Replace auxiliary oil pump
If one step resolves the problem, it is not necessary to continue with the remaining test steps. Exception: After step 4 always perform step 5.
Symptoms
Control unit/fault code
Work units
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 16
WIS-References
Attachment
Picture of the valve
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # S-80_57-57A Date: 120517
Keyless Entry/Start - Replacement And Diagnosis Revision
Date: May 17, 2012
Order No.: S-B-80.57/57a
Supersedes: S-B-80.57/57, May 16, 2012
Group: 80
Revision a: Revised to Indicate Paper SDS Process Involvement
SUBJECT: MY-All, Models 164, 166, 171, 172, 203, 204, 207, 209, 211, 212, 218, 219, 231, 245, 251
Replacement and Diagnosis of FBS3 and FBS4 Components
Troubleshooting in the event of problems with drive authorization or access authorization has been revised:
Procedure:
1. Perform quick test
- Control units
- Body
- EZS
- Special procedures -> "Guided test of transmitter key" or "Guided test of drive authorization system".
2. Select the applicable problem here.
3. In the event of problems with unlocking/locking the vehicle: Carry out a guided test of transmitter key.
4. In the event of problems with starting the engine: Carry out guided test of drive authorization system [DAS]. (A guided diagnosis clearly
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 17
determines the defective part.)
These tests check the functional interplay of the electronic ignition lock (EIS), electric steering lock (ELV) and transmitter key:
- "Perform quick test"
- "Check drive authorization system (after quick test)"
- "Check individual parts of the drive authorization system:.......... after Perform quick test"
NOTE:
Do not replace any parts without first performing a guided diagnosis.
Both vehicle keys should be available for an efficient and correct diagnosis. Therefore, ask the customer before their appointment to make
both vehicle keys available on the repair date. If this is not possible, make absolutely certain that you have the correct diagnosis path during
diagnosis with Xentry Diagnostics. Completely carry out the diagnosis up to and including the note referring to the part to be replaced.
Implemented diagnosis steps will be stored in the EZS and ELV control units. When the parts are inspected by warranty claims, the diagnosis
steps taken by the workshop can be identified.
At the end of the respective test steps, a note with the request to prepare a printout appears on the display. This printout and the printout of the
quick test must be uploaded to Paperless SDS.
During the warranty inspection we will check whether the parts have been justifiably removed, based on the diagnosis results. If this is not the
case or if the diagnosis printouts are not uploaded to Paperless SDS, the warranty claim may be denied. The same applies when the requested
parts are not returned. All parts requested by the inspection station are to be returned according to the warranty parts return process.
These parts are explicitly excluded from the Theft-Relevant Parts Ordering Policy.
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI91-40_P-0471834 Date: 120405
Restraints - Difficult To Pull Seat Belt Out
Driver or front passenger seat belt can only be pulled out with great effort.
Topic number LI91.40-P-047183
Version 4
Design group 91.40 Seat belts, emergency tensioning retractors
Date 04-05-2012
Validity Model series 204, 207, 212, 218
Reason for change Damage code updated
Complaint:
Seat belt can only be pulled out with great effort. At the same time a noise can be heard from the reversible reel tensioner gearing.
Cause:
The customer continuously pulled on the seat belt strap while adjusting the fit of the belt after buckling up (to reduce the slack). This caused the
drive of the reversible reel tensioner to remain engaged.
Remedy:
Insert the seat belt into the belt buckle with increased effort and switch on the ignition "circuit 15 ON". This causes the belt adjustment sequence to
be repeated and the drive of the reversible reel tensioner disengages properly. On customer request the "belt adjustment" function can be deactivated
using the multifunction buttons on the steering wheel. See operator's manual "Switching seat belt adjustment on and off".
Do not replace the seat belt!
Update the software version of the left and right reversible emergency tensioning retractor control units using XENTRY (Star Diagnosis).
Symptoms
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 18
Work units
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI42-20_P-052990 Date: 120117
Brakes - Squeak, Scrape, Or Rattle From Rear Brakes
Squeaking, scraping or rattling noises from area of rear wheel brake without brake actuation
Topic number LI42.20-P-052990
Version 1
Design group 42.20 Parking brake
Date 01-17-2012
Validity Model 204/207
Reason for change
Complaint:
Squeaking, scraping or rattling noises from area of rear wheel brake without brake actuation.
Attachments
Cause:
1. Brake shoes of the parking brake touch the inside of the brake disk bowl in the axial direction.
The brake shoes of the parking brake are fastened to the cover panel with retaining springs. These retaining springs must be centered on the
elongated holes in the brake shoes. If this is not the case, the affected brake shoe may touch the lip of the brake disk bowl in the axial direction
and cause noises (see attachment 1).
2. Stator clip has slipped and touches the inside of the brake disk bowl in the axial direction.
A stator clip is pushed onto the support for the brake shoes of the parking brake (brake stator). This prevents the brake shoes from working
into the aluminum wheel carrier. If this clip is pushed too far on during assembly, it may be widened in the radius area of the brake stator (see
attachment 2, item 3). This widening means that permanent secure fastening of the stator clip is no longer guaranteed and it may wander from
the brake stator in the axial direction until it touches the lip of the brake disk bowl.
3. Expansion lock has play.
The expansion lock is designed to have sufficient component tolerance to guarantee proper functioning of the parking brake even when
covered with brake dust deposits in the course of operation. This play can cause rattling noises on rough roads.
Remedy:
Re. 1. Brake shoes:
Replacement of the silver-colored brake shoe retaining springs installed as standard for black retaining springs (see parts ordering note).
When installing the retaining springs, the following points must be observed:
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 19
^Use of installation tool W 112 589 09 61 00 (see attachment 3).
^ Insert the retaining springs through the cutouts in the rear axle shaft flange so that they can be mounted vertically on the brake shoes (see
attachment 4).
^ Center the retaining springs on the elongated holes in the brake shoes (see attachment 5).
^ To hook up the retaining springs in the cover panel, turn them counterclockwise (to the left) to prevent tilting and to avoid stresses.
Re. 2. Stator clip:
Check the stator clip for abrasion marks and correct seating on the brake stator (see attachment 2, item 1: The sides of the stator clip must be
flush with the brake stator). If abrasion marks are visible on the stator clip, or if it is installed incorrectly, the stator clip must be replaced.
Re. 3. Expansion lock:
Install an additional snap clip between the extension spring and the expansion lock as per the installation note (see attachment 6, Figure 1).
When installing, please not:
^ Position the snap clip in the center of the extension spring and make sure that it engages properly in the extension spring (see attachment 6,
Figure 2).
Attachments
Symptoms
Parts
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 20
Attachment 1
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 21
Attachment 2
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 22
Attachment 3
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 23
Attachment 4
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 24
Attachment 5
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 25
Attachment 6
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # S-46_10-72 Date: 120409
Steering - Warranty Policy Regarding Steering Wheels
Date: April 9, 2012
Order No: S-B-46.10/72
Group: 46
SUBJECT: MY-All, Models All
Warranty Policy Regarding Steering Wheels
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 26
Do not submit steering wheels under warranty for the following types of damage (Figure 1):
A. Leather chatter marks possibly caused by keys or rings
B. Scratched leather caused by sharp objects or fingernails
C. Cracks at air bag perforation area caused by improper air bag removal
D. Dents or pressure marks caused by wheel clamps
E. Wooden segment damaged by impact with something
F. Wooden segment mechanically scratched
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI32-25_P-0483812 Date: 110214
Suspension - Front Axle Dull Thumping Noise On Bumps
Noises from area of front axle on uneven roads
Topic number LI32.25-P-048381
Version 2
Design group 32.25 Shock absorbers/damper struts/spring struts
Date 02-14-2011
Validity MODEL 204
- without CODE (483) Vehicle dynamics package,
- without (204.#77) AMG
Reason for change Reference to separate LI on topic of front axle suspension struts
Complaint:
Dull thumping noises or metallic rattling from the area of the front axle on slightly uneven roads or on repaired road surfaces.
Note:
The noises occur in the lower vehicle speed range (20 ... approx. 70 km/h).
Cause:
Several causes are possible:
1. Rigidity (Shore hardness) of the head bearings on the suspension struts of the front axle is too high.
Note:
Noises from the head bearing occur on larger undulations and sound relatively dull.
This cause only affects a small, limited production batch! - Always observe the VIN range stated below for the head bearing/strut tower
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 27
bearing for the validity! On vehicles outside this range the head bearing is not the cause of the noise and therefore must not be replaced.
2. Front axle shock absorber
Note:
See LI "Noises from area of front axle suspension struts"
Note:
Noises from the shock absorber are audible on small undulations and have a more metallic sound.
3. Torsion bar linkage
Note:
Noises caused by the torsion bar linkage are known only in a very few isolated cases in this model series.
In other words, it is generally not the source of the noise, so please follow the procedure described below.
Remedy:
11
Note:
For noise diagnosis the use of the STEELMAN ChassisEAR is helpful and it should be used if there is any uncertainty.
Drive on uneven and smooth surfaces alternately in order to identify the affected component.
If necessary, perform a test drive without the torsion bar linkage (EPC: "torsion bar rod and shock absorber") in order to eliminate it with
certainty.
Check torque specifications (see WIS) of torsion bar linkage beforehand and correct if necessary.
Re.cause 1 (dull noises on larger undulations):
Affected VIN number range: 204.0## #A 185017 up to * 195993 for head bearing
- Replace head bearing/ strut tower bearing (EPC designation: "suspension strut bearing on body").
Re.cause 2 (metallic noises on smaller undulations):
Replace front axle suspension struts.
Note:
See LI32.25-P-051123 "Noises from area of front axle suspension struts".
Re.cause 3:
Replace torsion bar linkage.
Symptoms
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 28
Parts
Work units
WIS-References
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI82-85_P-051952 Date: 120326
COMAND(R) - Switches ON With Vehicle Locked
COMAND: System switches on without obvious cause with vehicle locked
Topic number LI82.85-P-051952
Version 1
Design group 82.85 Navigation and communication systems (CNS, ICS, COMAND, FleetBoard)
Date 03-26-2012
Validity Model 204 up to chassis #A531239, #F660210 and COMAND (code 512 or 527)
Reason for change
Complaint:
COMAND (A40/3) and central display (A40/8) switch on without obvious cause with vehicle locked. The system runs and can be operated
normally.
This complaint only occurs on COMAND (A40/3) with hardware release 08.11.
Note:
The fault profile does not cause the on-board electrical system battery to discharge. Generally, the head unit switches back off after 30 min. at the
latest with the ignition key removed.
Cause:
COMAND (A40/3) software error in combination with hardware release 08.11
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 29
Remedy:
Update COMAND (A40/3) software. The modified software as of software release 08.28 is available since the Telematics CD Version 11/2008.
Note:
In isolated cases, the complaint may not be rectified after the COMAND software update. The cause my be the switch on the Audio/COMAND
display (A40/8). In this case, replace the Audio/COMAND display (A40/8).
Symptoms
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI82-70_P-042940 Date: 120409
Cell Phone - Bluetooth(R) Choppy, Echo/Distortion
Blue Tooth Hands-free Telephone Conversation Choppy, Echo/Distortion Detected Especially By The Land-line Caller
Topic number LI82.70-P-042940
Version 1
Design group 82.70 Cellular telephone, voice control system (VCS)
Date 04-09-2012
Validity Model 204 up to chassis A182847 or F171433 with COMAND APS including DVD changer, code 512, or COMAND APS (with navigation), code 527
Reason for change
Complaint:
If you receive customer reports in the above model vehicles of the Blue Tooth Telephone hands-free conversation Audio quality being choppy,
produces echo on both sides but especially detected by the landline.
Cause:
Maybe due to a Software error in the COMAND Head Unit.
Remedy:
To remedy, please update the COMAND Head Unit software using DAS 02/08 (or later) and SD Telematics Disc PN A204 827 42 59 by following
the procedure below.
Update Procedure:
1. Turn Engine and Electrical Consumers OFF
2. Connect a Battery Charger & Start DAS
3. Proceed to menu: Control units --> Information and communication --> Audio, video navigation and Telematics --> COMAND APS --> ...-->
Control unit adaptations --> control unit programming.
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 30
4. Follow the DAS prompts ... insert the SD Telematics CD into the Head Unit slot 1 of the changer and wait until the CD is recognized the
update process will start automatically Do NOT Turn Head Unit OFF during the update process (See figure 1 showing what the COMAND
screen looks like during the normal update process)
5. When process is complete, restart the Optical Ring and go back to: control unit adaptations --> Variant coding --> SCN Coding. Perform a
COMAND SCN Coding
NOTE:
You must perform SCN coding after the update even though the Head Unit is fully operational, otherwise, the update is not complete
Attachments
Symptoms
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 31
Work units
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # S-91_40-198 Date: 120427
Restraints - Seat Belt Buckle Warranty Replacement Information
Date: April 27, 2012
Order No.: S-B-91.40/198
Group: 91
SUBJECT: MY-All, Models All
Seat Belt Buckle
Seat belt buckle replacements will not be covered under warranty when there are glass splinters present in the buckle head. Test the seat belt buckle
function and check for broken glass when there are customer complaints that the seat belt buckle: closes poorly, is jammed, or is sluggish. Test by
inserting and releasing the seat belt tongue.
Do not submit belt buckle replacement under warranty where there are signs of breaking and entering or other types of vandalism.
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI82-85_P-053676 Date: 120426
Navigation/Cell Phone - Noises From Central Display Area
Audio/COMAND display: Noises from area of central display
Topic number LI82.85-P-053676
Version 1
Design group 82.85 Navigation and communication systems (CNS, ICS, COMAND, FleetBoard)
Date 04-26-2012
Validity Model 204 with code 527 (COMAND APS) or 512 (COMAND APS with DVD changer) up to code 800 (Model year 2010)
Up to VIN 204.0##A496130 and up to VIN 204.2## F616508
Reason for change
Complaint:
In vehicles with COMAND APS (code 527 or 512), noises may come from the area of the central display in the instrument panel.
Cause:
Stresses on the kinematics of the central display
Remedy:
Remove Audio/COMAND display (A40/8) and reinstall without stress.
Test drive with to check if issue still exists.
If noises are still present, replace display
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 32
Symptoms
Work units
WIS-References
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI82-10_P-050139 Date: 100818
Lighting - Headlamps/Front Fog Lamps Leaking Or Fogged
Headlamps/front fog lamps leaking or fogged
Topic number LI82.10-P-050139
Version 1
Design group 82.10 Exterior lights
Date 08-18-2010
Validity All vehicles
Reason for change Remedy revised and the new model series incorporated / Supersedes DTB T-B-82.10/334
Complaint:
Headlamps/front fog lamps leaking or fogged
Cause:
As the headlamp is cooling down, e.g. after switching off, in rain or when washed, air is drawn in and the moisture from the air condenses on the
headlamp lens.
The ventilation of the headlamps ensures that this condensation is dissipated again after a short period of operation.
If the customer complains about fogging that is not present at the time of the workshop visit, then this is condensation. For these reasons,
condensation is a natural phenomenon and does not indicate a defect or malfunction; warranty and goodwill claims with this complaint will be
rejected.
Remedy:
Remedy 1:
A defective headlamp can be identified as follows:
1. Check headlamps for external damage and also check for correct seating/locking of the caps.
2. If the headlamp exhibits external damage:
3. Remove/install/replace headlamp.
4. Check headlamp setting and correct if necessary.
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 33
Note:
If there is external damage on the headlamp or if the caps are not correctly seated/locked, there is no grounds for a warranty or goodwill
case.
Remedy 2:
Clearing fogged/condensed headlamps:
1. Drive the vehicle into the workshop and connect the exhaust extractor.
Note:
In dry weather (temperature higher than +15°C/+59°F), you can also treat the vehicle out of doors.
Do not perform an engine wash before the defogging test.
2. Start the engine and switch on the following lights:
a. Main headlamps and front fog lamps fogged: High and low beams, front fog lamps, hazard warning system.
b. Only front fog lamps fogged: Front fog lamps.
3. Leave the vehicle in this state for 40 minutes.
4. Switch off all lights and the engine.
5. Check the fogging; a noticeable reduction in the amount of fogging must be visible (progress of defogging process).
Note:
If no reduction in the degree of fogging is visible, the headlamp is defective and must be replaced.
It is not physically possible to defog the headlamps completely.
Fogging does not impair the operation or the service life of the headlamp.
Symptoms
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI54-10_P-051049 Date: 120405
Electrical - Consumer Shutoff Intermittently Active
Consumer shutoff intermittently active
Topic number LI54.10-P-051049
Version 1
Design group 54.10 Battery, voltage supply, voltage converter
Date 04-05-2012
Validity Model series 169, 245, 204, 207, 212, 216, 221 (as of SA code 809)
Reason for change
Complaint:
- Consumer shutoff intermittently active.
- Head unit and/or other consumers are shut off after a short time.
Cause:
The voltage value transmitted by the battery sensor to the rear signal acquisition and actuation module (rear SAM) via the LIN bus is too low,
causing the rear SAM to shut off consumers.
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 34
Remedy:
Use diagnosis in the SAM to read out the actual voltage value transmitted by the battery sensor to the rear SAM, and compare it with the voltage
measured directly at the battery using a multimeter.
If a difference> 1V is measurable, the battery sensor must be replaced.
Symptoms
Parts
Work Units
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI32-25_P-051123 Date: 111220
Suspension - Noises From Front Axle Suspension Struts
Noises from area of front axle suspension struts
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 35
Topic number LI32.25-P-051123
Version 1
Design group 32.25 Shock absorbers/damper struts/spring struts
Date 12-20-2011
Validity
Reason for change
Complaint:
Dull thumping noises or metallic rattling from the area of the front axle on slightly uneven roads or on repaired road surfaces.
Note:
Observe chassis number range!
Note:
Noises from the shock absorber are audible on small undulations and have a more metallic sound.
Note:
The noises occur in the lower vehicle speed range (20... approx. 70 km/h), see "1.mp3".
Note:
In this case, deviating from the normal procedure, replace both suspension struts.
Symptoms
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 36
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 37
Parts
WIS-References
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI54-10_P-053538 Date: 120405
Electrical - Vehicle Doesn't Perform Automatic Engine Stop
Vehicle does not perform automatic engine stop
Topic number LI54.10-P-053538
Version 1
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 38
Design group 54.10 Battery, voltage supply, voltage converter
Date 04-05-2012
Validity Model series 169, 245 with code B01
Model series 204 with SA code B03
Model series 172 with SA code B03
Reason for change
Complaint:
The vehicle does not perform the automatic engine stop although the ECO function was activated via the ECO button.
Cause:
Battery sensor transmitting incorrect temperature value
The temperature value and/or voltage value transmitted by the battery sensor is constant and does not change
Remedy:
IMPORTANT:
- On no account should the sensor be de-energized prior to the test, i.e. do not disconnect the ground terminal on the battery, otherwise a reset
will occur and the result of the function test will be inaccurate.
- Sensors that previously transmitted a constant temperature value could then become OK temporarily, i.e. the fault will not be rectified!
Function test of battery sensor:
a) Check the temperature value:
A battery sensor that transmits a constant temperature value of -40°C or +120°C must be replaced.
A battery sensor that transmits a constant value between -40°C and +120°C must be tested as follows:
- Required aids:
- Xentry
- Multimeter capable of measuring temperatures
1. Measure the ambient temperature at which the vehicle has been kept for some time (e.g. the outside temperature if the vehicle has been
standing outdoors for some time)
2. Measure the outside temperature of the battery on the negative terminal clamp directly at the IBS using a suitable measuring instrument
3. Using Xentry, read out the current battery temperature: - Select BSN - Battery sensor (B95) # Current data of battery sensor # Battery
temperature
- Compare these three temperatures, the ambient temperature, the temperature at the battery negative terminal and the battery temperature (from
Xentry), taking into account a tolerance range of +/- 3°C.
- Repeat the test after approx. 30 mm in order to rule out delayed reaction of the battery sensor to temperature changes.
If the value transmitted by the battery sensor is outside the tolerance, the battery sensor must be replaced.
b) Check the transmitted voltage value:
- Start the engine. Does the voltage value measured by the battery sensor change?
- If the transmitted voltage value remains constant, the battery sensor must be replaced.
Symptoms
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 39
Work Units
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI27-60_P-051470 Date: 110323
A/T - Hard 2-3 Upshift Or Slips, No 3rd Gear/DTC's Stored
Uncomfortable Upshift 2-3
Topic number LI27.60-P-051470
Version 1
Design group 27.60 gearshift, control
Date 03-23-2011
Validity All models with transmission 722.9
Reason for change
Complaint:
Hard shift operation 2-3 upshift or transmission slips (3rd gear may not be reached)
Fault codes P2502, 2505, 0894, 2711 can be entered.
Cause:
K1 piston damaged (adaptation data of shift operation 2-3 on positive/negative end stop, +20/-20 and/or +2000/-2000).
Remedy:
If the complaint can only be reproduced for the upshift from gear 2 to gear 3 or if the 3rd gear cannot be reached, there is a defect in the K1 piston.
1. Replace complete multidisk clutch Ki as per EPC.
2. Then readapt the vehicle.
Symptoms
Works Units
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # S-83_00-135 Date: 120302
A/C - HVAC - Foam Cleaner Information and Work Procedure
Date: March 2, 2012
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 40
Order No.: S-B-83.00/135
Group: 83
SUBJECT: MY-All, Models All
Mercedes-Benz HVAC-Foam Cleaner - Work Procedure
NOTE:
This procedure is not approved for vehicles covered under warranty. Refer to LI83.00-P-051588 for details on which vehicles can be cleaned under
warranty using Mercedes-Benz Contra Sept disinfectant cleaner (S-B-83.30/134). Additionally, the combination filter is a maintenance item and is
not covered under warranty.
Procedure
1. Start the engine with the A/C ON, temperature set to coldest setting, inlet set for outside air (not recirculate) and blower set for high speed.
Note:
The A/C must be run for at least 15 minutes to get condensation to build on the evaporator. This will adequately wet evaporator and promote the
product's ability to clean.
2. Locate the evaporator core case and blower assembly by removing any covers below the instrument panel on the passenger's side that may cover
the case.
3. Remove the cabin air filter and close off the empty filter cavity with the filter block off plate
^ For models where the filter bock off plate is integrated with the filter media (as with model 204/212). Remove the filter media, leaving the
bare block off plate, which can be reinstalled for the cleaning procedure (Figure 1).
4. On vehicles with an activated charcoal filter, remove these filters as well.
5. Drill a 3/16" hole in an accessible location between the evaporator core case & blower assembly, depending on your vehicle model. Use a drill
stop set at the thickness of the case to prevent plunging into case too deep.
Warning!
Follow the diagrams for a given vehicle model series, otherwise damage to the evaporator may occur.
^ Only drill through the case skin and gently probe inside with a dull instrument for any obstructions that the nozzle may encounter. If needed, use
the supplied plug and find another spot to drill.
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 41
6. Shake the disinfectant product can and with the hose attached to the can push the nozzle into position & rotate so the pointer faces the evaporator
core (Figure 2).
7. With the blower still on, start dispensing the foam in short bursts. As the case fills with foam, airflow will decrease from the vents. Pause for the
blower to push the foam through the core. (If the fan starts to squeak, stop dispensing while the blower catches up). As airflow resumes, continue
with short bursts of foam. If the system is overloaded by dispensing the foam too quickly, foam can escape from components under the dashboard.
NOTE:
Do not allow the foam to drip to any electronic components. Intercept any escaping foam with a towel.
To prevent possible staining, do not allow any foam to blow out of vents onto seating or other interior materials.
8. Continue with this application method until the can is empty then shut the system off completely.
9. After a minimum 10-minute wait, turn the blower on LOW to MEDIUM for 2 minutes to push excess foam out of the core.
10. Check that the drain is flowing freely under the vehicle. If there is no drainage, the drain is clogged. A clogged drain must be cleared.
Condensation will rinse out any remaining cleaner residue and contaminants.
11. Reinstall new cabin filters and activated charcoal (if equipped).
NOTE:
It is required that you replace the cabin filter after treatment. It is recommended that you replace the activated charcoal filters (if equipped).
Additional instructions for this procedure will be available via Learning & Performance:
VILT Course Code:X0001F-US.TTA (starting in second quarter 2012).
Parts Information
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # S-54_65-252 Date: 120207
Parking Assist - Malfunction and Fault Scenarios
Date: February 7, 2012
Order No.: S-B-54.65/252
Group: 54
SUBJECT:
MY-All, Models 163, 164, 166, 170, 171, 172, 197, 202, 203, 204, 207, 208, 209, 210, 211, 212, 215, 216, 218, 219, 220, 221, 230, 231, 240, 245,
251, 463 with Code 220 Parktronic system (PTS); Code 230 Advanced Parking Guidance; Code 235 Active Park Assist
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 42
Parktronic Malfunctions and Faults
This is an overview of Parktronic malfunction and fault scenarios, respectively.
Malfunction Scenario 1
Malfunctions are indicated with double red (4 LEDs) warning elements and no warning tone (Figure 1).
An entry is not saved in fault memory.
Malfunctions can be triggered by external ultrasonic signals:
^ Compressed air
^ Drier blower for a washer system
^ Rail vehicles
^ Brake squeal on vehicle or a nearby vehicle
Or through:
^ Soiling of sensors with ice or snow
^ License plate brackets
Fault Scenario 2
Faults are indicated in the Parktronic warning elements with double red (4 LEDs) with warning tone (Figure 1) (see arrows).
An entry is saved in fault memory.
The sensor function is automatically checked while driving at between 22-37 mph. If a fault occurs when driving, then this is issued at a speed less
than 9 mph with double red lights and warning tone.
The following applies to both scenarios:
If a malfunction or a fault is present for more than 2 seconds, the display in the warning elements goes out and the PARKTRONIC OFF button in the
UCP lights up in red.
Diagnosis
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 43
To fix issues that cannot be clearly located via fault codes in fault memory, check for correct and central installation (Figure 3) (C) or for any
damage caused by stone chipping (Figure 2) (A) (B).
The decoupling ring must be centered and custom fit when installed (Figure 3) (C) and Figure 4 (C). Refer also to S-B-54.651251 Parktronic Sensor
Return Policy.
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # S-54_65-251 Date: 120207
Parking Assist - Parktronic Sensor Return Policy
Date: February 7, 2012
Order No.: S-B-54.65/251
Group: 54
SUBJECT:
MY-All, All Models with Code 220 Parktronic system (PTS); Code EZ8; Code 230 Advanced Parking Guidance; Code 235 Active Park Assist;
Code EZ8 Parktronic system (PTS)
Parktronic Sensor Return Policy
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 44
Do not replace any Parktronic sensor under warranty that has (Figure 1) (A) (B) parking dents, stone chipping, or the like on the diaphragm cup-the
painted part of the senor.
In addition, perform a control log or quick test before replacing any sensor without external damage.
Mark the installation position (Figure 2) on the returned sensor and include the following when returning any Parktronic control unit, Parktronic
sensor, or Parktronic warning indicator under warranty:
^ Part return slip (ARS) (for residual market operations a return delivery document is also required)
^ Control Unit Log
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # LI20-40_P-053718 Date: 120507
Cooling System - Coolant Fan ON With Ignition OFF Via Moisture
No-load (quiescent) current too high, engine suction fan starts up without obvious cause after ignition "off", battery discharged
Topic number LI20.40-P-053718
Version 1
Design group 20.40 Fan, fan clutch
Date05-07-2012
Validity Models 203, 164, 251, 204, 207, 212, 219, 216, 221, 218 with Brose/ Temic radiator fan
Reason for change Other vehicle model designations included
Complaint:
- Radiator suction fan starts up without obvious cause although the ignition has been off for longer than 30 minutes
- Radiator suction fan changes to limp-home mode (runs at 100% output) while driving, with display message (cooling system) in instrument cluster
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 45
- Battery discharged
Cause:
The electric radiator suction fan may start up by itself with ignition "off" due to moisture ingress.
In menu "Behavior of quiescent current" (Functions Views / Overall Vehicle / Power Supply / Actual Values / Battery Sensor) read out the 5 stored
data records. If at least one of the data records contains a no-load current entry of >10A and if the mileage reading in SDS menu agrees with the
actual mileage stand at which the vehicle battery was discharged, the radiator fan may have been the cause of the fault.
Only Brose/Temic fans with the following part numbers are affected:
A221 500 11 93, A221 500 09 93, A221 500 10 93, A164 500 04 93, A164 500 05 93, A203 500 16 93, A203 500 14 94, A204 500 02 93, A204
500 04 93. Refer to the parts table for part number replacement (valid at the time of publication).
Remedy:
Replace radiator fan as per EPC.
Symptoms
Parts
Work units
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # S-98_00-31 Date: 130109
Body - Cleaning Tin-Plated Surfaces
Date: January 9, 2013
Order No.: S-B-98.00/31
Group: 98
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 46
SUBJECT: MY-All, Models All
Cleaning Tin-Plated Surfaces
Prior to painting tin-plated surfaces do the following:
Procedure
1. Heat with an infrared portable radiant drying unit for approximately 15 minutes.
2. After the surface has cooled sufficiently, clean the area thoroughly with sheet-metal cleaner or degreasing agent.
3. Paint with approved painting material.
Reference http://aftersales.mercedes-benz.com, and S-B-98.00/13T (or latest version).
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # S-14_00-31 Date: 130201
Emissions - I/m Dynamometer Emissions Testing
Date: February 1, 2013
Order No: S-B-14.00/31
Supersedes: S-SI-MBNA-14/12A, May 1998
Group: 14
Revision a:
Updated to include model application guide for I/M 240 dynamometer testing
SUBJECT:
MY-All, Models All
I/M 240 Emissions Testing on Dynamometer
The enhanced Inspection/Maintenance emission testing program (I/M 240) is in effect in several states.
It is recommended that all vehicles be tested on a 4-wheel dynamometer.
The following vehicle may be tested on a 2-wheel dynamometer:
^ Mercedes-Benz vehicles that are 2WD and not equipped with Acceleration Slip Regulation (ASR)
^ Mercedes-Benz Maybach and smart vehicles that are 2WD and have "Dyno-Mode" capability (must be activated)
The following vehicles must be tested on a 4-wheel dynamometer:
^ Mercedes-Benz vehicles equipped with ASR
^ Mercedes-Benz vehicles equipped with 4MATIC
^ Mercedes-Benz vehicles that are 2WD and do not have "Dyno-Mode" capability
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 47
Please see Attachment 1 for a list of vehicles that must be tested on a 4-wheel dynamometer.
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 48
Please see Attachment 2 for a list of vehicles with "Dyno-Mode" capability and the activation procedure.
According to US Environmental Protection Agency (EPA) procedures, if an emissions inspector has difficulty performing the I/M 240 test on a
2-wheel dynamometer, the following should be considered:
^ Test the vehicle on a 4-wheel dynamometer, or
^ Perform an optional emission test at idle +2500 rpm
An emissions inspector should also consider the options above if they are uncertain about the Dyno-M ode activation procedure or is uncertain about
which vehicles can operate on a 2-wheel dynamometer.
Attachment 1: Vehicles That Must be Tested on a 4-Wheel Dynamometer
Please refer to the Vehicles Operator's Manual for details regarding ASR and 4MATIC.
Attachment 2: Dyno-Mode Activation Procedure for Operation of a 2WD Vehicle on a 2- Wheel Dynamometer
Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Technical Service Bulletin # S-40_00-77 Date: 121206
Steering/Suspension - Wheel Alignment Data
Date: December 6, 2012
2010 Mercedes Benz C 250 4MATIC (204.085) (CAN) V6-2.5L (272.911) Page 49
Order No.: S-B-40.00/77
Group: 40
SUBJECT: MY-All, Models All
Wheel Alignment Data
In order to ensure the accuracy of our MKS alignment process, all ride height data must be transferred to the MKS alignment console via the
required Romess docking station. Effective repair date February 1, 2013, any wheel alignments performed with manually entered ride height data
may be subject to debit.
NOTE:
As in Figure 1, an "ed" after the vehicle axle level indicates data has been entered manually, which is not acceptable.
