Variable Valve Timing Solenoid: Service and Repair

11 36 655 - Removing and installing/replacing both solenoid valves (N12)





Important!
Always check that the solenoid valves are clean during removal and installation.
Possible malfunction if valves are contaminated:
- Rough running.
- OBD fault entry.
- Exhaust emission behavior.
- Low engine power.





Necessary preliminary tasks:
- Remove acoustic cover 11 00 ... Removing and Installing/Replacing Acoustic Cover





Disconnect plug connection for solenoid valve (3) - inlet.
Release screw (1).
Remove solenoid valve (2) for inlet side.





Disconnect plug connection for solenoid valve - exhaust.
Release screw (2).

Important!
Do not use a tool to lever out solenoid valve (1).
A tight fit in the solenoid valve and deformation caused by incorrect removal will result in solenoid valve failure.

Remove solenoid valve (1) for exhaust side.





Installation Note:
Replace sealing rings on solenoid valves.





Assemble engine.
Check function of DME.