2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 226

- N10/1 (Driver-side SAM control unit with fuse and relay module)

Fuses

- FuseF43-F67

Relays

- I =N10/1kI (Circuit 87 relay, engine)

- K =N10/1kK (Circuit 87 relay, chassis)

- L =N10/1kL (Starter relay)

- M =N10/1kM (SEQ [ASG] pump control relay)

- N =N10/1kN (Circuit 15 relay)

- O =N10/1kO (FAN relay module)

- P =N10/1kP (Circuit 15R relay)

- R =N10/1kR (Air pump or oil cooler fan relay)

3. Power supply

Voltage supply via component Z7/38 (Circuit 87 M1i connector sleeve)

Possible cause and remedy

- Check voltage supply according to wiring diagram.

4. Check component Y49/6 (Left camshaft exhaust solenoid).

Test 4.1: Test actuation of component Y49/6 (Left camshaft exhaust solenoid).

Test 4.2: Test current consumption of component Y49/6 (Left camshaft exhaust solenoid).

4.1. Test actuation of component Y49/6 (Left 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

4.2. Test current consumption of component Y49/6 (Left 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