Tuesday, April 13, 2021

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 212


Continuous camshaft adjustment ( LEFT ): Incorrect position of the exhaust camshaft (P0025)



Possible cause:



- Exhaust camshaft of left cylinder bank



Affected functions:



- Engine diagnosis



- Engine output



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Test 1: Exhaust camshaft of left cylinder bank



1. Exhaust camshaft of left cylinder bank



Warning!Communication with ECU required.



0065



Component Y49/7 (Right camshaft exhaust solenoid) has a short circuit to positive. (P2091)



Possible cause:



- Y49/7 (Right camshaft exhaust solenoid)



Affected functions:



- Engine diagnosis



- Engine output



-------------------------------------------------



Test 1: Check component Y49/7 (Right camshaft exhaust solenoid).



1. Check component Y49/7 (Right camshaft exhaust solenoid).



Test 1.1: Test actuation of component Y49/7 (Right camshaft exhaust solenoid).



Test 1.2: Test current consumption of component Y49/7 (Right camshaft exhaust solenoid).



1.1. Test actuation of component Y49/7 (Right camshaft exhaust solenoid).



Test prerequisite



- Engine at idle



- Vehicle stationary



- Coolant temperature > 80锟斤拷 C



- Time since engine start> 60 s



Status of relevant actual value:



- Temperature of coolant:Warning! Communication with ECU required.



Note



- After the actuation it may be necessary to erase the fault memory!



Proceed to 'Actuation' with F2



1.2. Test current consumption of component Y49/7 (Right camshaft exhaust solenoid).



Figure legend



- A -ConnectionTest cable 35-pin socket box



- 001 -Sockets of component N3/10 (ME-SFI [ME] control unit)



- 05 -35-pin socket box



- 050 -126-pin socket box



- 108 -Test cable 266 589 01 63 00



- N3/10 (ME-SFI [ME] control unit)



- II 1-63ConnectionTest cable



- III 64-126ConnectionTest cable

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