Otherwise, the front engine cover alternator brackets will be damaged and not covered by warranty.2005 Mercedes Benz CLK 320 Technical Service Bulletin #

P-07_60-16 Date: 020122
Engine Controls - Rough Idle/Hesitation/DTC's Set
Date: January 22, 2002
Order No.: P-B-07.60/16
Supersedes:
Group: 07
SUBJECT:
C-Class (203.061/064) with M112 (V6) Engine
E-Class (All) with M112 (V6) and M113 (V8) Engine
S-Class (220.170/175, 215.375) with M113 (V8) Engine
Rough Idle / Rough Running / Hesitation / Engine Won't Start
On the above mentioned models, if you encounter conditions of rough idle, rough running, hesitation or engine won't start with the following
possible engine codes P2034, P2050, P2051 P2052, P2053, P2054, P2055, P2056, P2057, P2058, is possible that there is moisture in the crankshaft
position sensor plug leading to corrosion of the contact pin(s). Please perform the following procedure to resolve.

1. Read out fault memory from engine control module, print/file and erase.


2. C-Class (203.061/064):

• Remove engine cover/air cleaner.


• Remove air intake hose between air cleaner and air intake scoop.


• Remove air mass sensor with air duct.

E-Class:
- Remove engine cover.
S-Class (220.170/175, 215.375)
- Remove engine cover/air cleaner.
2000 Mercedes Benz CLK 320 (208.365) V6-3.2L (112.940) Page 145
- Remove air intake hose between air cleaner and air intake scoop.

1. Disconnect plug from crankshaft position sensor.


2. Cut open and remove heat-shrink tubing around wires & plug.


3. Using special "unlock" tool, unlock and remove contact pins from crankshaft sensor plug.


4. Cut cable between harness insulation and crimping of pins.


5. Slide new heat-shrink tubing onto cable.


6. Solder new crankshaft sensor plug with individual wire seals PN 112 150 0133 onto existing wiring harness and insulate with new-heat shrink

tube (observe correct wiring assignment) - see WIS document AR00.19-P-01 00A.
9. Reconnect plug to crankshaft position sensor.
10. Proceed as in Step 2 in reverse order.
Note:
Modified plug has been phased into production as follows:
C and E-Class: Harness production 7/01
S-Class: Harness production 11/01
Production date of the harness is located on the harness inside the module box.
Parts Information