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

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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