2020 Mercedes Benz Truck ML 350 Technical Service Bulletin # LI82-85_P-0480912 Date: 091028
COMAND(R) System - System Starts Then Switches OFF
COMAND APS: SYSTEM STARTS AS FAR AS THE STAR DISPLAY AND THEN GOES OFF, NAVIGATION NOT AVAILABLE, DRIVE
ERROR
Topic number LI82.85-P-048091
Version 2
Design group 82.85 Navigation and communication systems (CNS, ICS, COMAND, FleetBoard)
Date 10-28-2009
Validity Model 171, 230, 164, 251, 169, 245, 211, 219, 203.7 with COMAND (code 512 or 527) and code 809 or 800 (NTG2.5)
Model 463 with SA code EU1
Reason for change Complaint revised
Reason for block
Complaint:
1. The COMAND (A40/3) starts only until the star appears and then switches off again.
2. The message "Navigation unavailable" appears in the navigation basic menu.
3. The message "Drive unavailable, temperature too low or too high" appears in the navigation basic menu.
4. The COMAND (A40/3) does not power ON
5. Fault message in the display "Error on Update - Error code 0x....".
6. Audio CDs or video DVDs are not read, drawn in or ejected.
Attachments
Cause:
2020 Mercedes Benz Truck ML 350 4MATIC (164.186) V6-3.5L (272.967) Page 178
There is a hardware fault in the Comand (A40/3).
Remedy:
Replace COMAND APS (A40/3). Before replacement, please look at the notes below.
NOTE:
For fault number 3 above, ensure that the replacement head unit serial number is newer than what is listed below.
211/219 COMAND with HDD/Navi --------------90233487
171 COMAND with HDD/Navi --------------81202465
245 COMAND with HDD/Navi --------------81200442
164 COMAND with HDD/Navi --------------90341695
251 COMAND with HDD/Navi --------------90205119
230 COMAND with HDD/Navi--------------81210689
463 COMAND with HDD/Navi-------------- 90200791
NOTE:
If a COMAND head unit (A40/3) with PIN theft protection is installed in the vehicle, the PIN code must be documented in the VeDoc system.
Observe the [initial start-up] instructions guided by DAS/XENTRY Diagnostic. During the SCN coding process, DAS updates the head unit relevant
data in VeDoc. All this documentation is done automatically by DAS/XENTRY as part of the SCN coding process.
You must complete the SCN coding process so that XENTRY Server loads and documents and correct theft-protection PIN onto the head unit, other
wise, the head unit will not function after 50 ignition cycles have been reached.
NOTE on Hard-drive operation at high altitude (3000 Meters or higher):
To protect the head unit's hard-drive (HDD) from being permanently inoperative, we specified the HDD to shut itself down as the vehicle (and
therefore the head unit) reaches an altitude of about 3000 Meters (9842 ft.) or higher with temperature around the head unit and its surroundings
reach 55锟斤拷C or higher. This condition is normal.
At that altitude and temperature, the Hard-drive music register, Navigation System, Voice Recognition, Gracenote Database CD/DVD drive will not
be available to the user. Once the vehicle is brought down to altitude lower than 3000 Meters, the above functions should return to normal operation.
Do NOT replace head units or the claim will be denied.
Symptoms
2020 Mercedes Benz Truck ML 350 4MATIC (164.186) V6-3.5L (272.967) Page 179
Work units
Validity
Attachment - Head unit display "drive unavailable..."
2020 Mercedes Benz Truck ML 350 4MATIC (164.186) V6-3.5L (272.967) Page 180
Attachment - An example of Error Code 0x: 0202
