[Skyline18]

Hello guys,

My car:

BMW E90 N52B25 Engine

Fixed so far:

Ignition Coils / Plugs
Vanos Solenoids genuine bmw
Valve Cover Gasket (Dont think they did it right, got a lot of oil under the intake manifold on the engine, possible causes?)
"V-Belt" and all the rolls. (Cause of Sounds)


Problem:

Every second drive, the car goes into (Limp Mode?) after the first mile of driving. Theres a complete loss of torque when it happens. When I restart the car, the problem is gone and doesnt come back for the rest of the drive cycle.


No Fault Codes.

My thought: Maybe it has something to do with the leaking Oil under the intake manifold? Maybe the Valvetronic is leaking and shutting down or something, I dont know.


Maybe you guys know that problem and can share your experiences ?

Thanks in Advance!

Sorry for my bad English btw, im German.