[tim135xi]

Hello Bimmerfriends,

Last year I got myself a preLCI m135xi F20. The car was in quite good condition, however, after Ive been driving in for roughly a month, i got a drivetrain error on the screen, no CEL though. By restarting the engine the light usually went away for the next 20ish times.
2 months ago I drove to Belgium and this time there were multiple times this error showed up, no matter how often i restarted the engine. Until I opened up the engine hood and then started up the engine again. A day later, the error showed up and this was no longer working too. I then noticed a high pitch noise coming from the engine, irreguarly being interrupted by a clicking noise. Now, everytime this error comes up (and it does almost daily: I drive the car, turn the car off, turn the ignition on and the drivetrain error shows up), the noise comes with it. Ill link a video down below so you can hear the sound. I also read out the errors via bimmerlink. (The error 133E10 couldnt be removed at all, and when the error occured, it showed me the errors 123432 and 120408). Ill try my best to translate the errors:
133e10 - Valvetronic System: deactivated, too many adjustment errors
123432 - eletrical wastegate, learning limit: stop position (wastegate closed) out of tolerance
120408 - charging pressure control: switched off as followup-reaction

https://youtube.com/shorts/sqgA8x32-rw?feature=share

THANKS A LOT IN ADVANCE!!!

[DomMuc]

check exzenterwelle and valvetronicmotor.. usuallly there are some teeth missing from the gear... means you need a new valvetronicmotor and exzenterwelle ~2k