Variable Valve Timing Solenoid: Service and Repair

11 36 655 Removing And Installing/Replacing Both Solenoid Valves (N16)







IMPORTANT:
Always check that the solenoid valves are clean during removal and installation.
Possible malfunction if there is dirt contamination in the valves:
- Irregular operation.
- OBD fault entry.
- Exhaust emission behavior.
- Low engine performance.







Necessary preliminary tasks:
- Remove acoustic cover







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







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

IMPORTANT:
Do not use a tool to lever out solenoid valve (1).
A tight fit at the solenoid valve or 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 Digital Engine Electronics.