Margal

OP may I ask you the part number of that crancking sensor if you got one you mentioned above to fix rpms going up and down, and where it is located. Is it easy DIY?
For the shop try Motorcepts.

550nyc

I am not sure what the part number is and the DIY seemed hard to me so i replaced it at motorcepts and it costed around $220 from what i remember.


*** On a side note just in case someone experiences the same problem, i just got my car back from the shop and they told me it was my ISM module that needed to be changed..
here is the part:
http://www.realoem.com/bmw/showparts...62&hg=12&fg=35

i will update later if this really fixed it

Mrsosoo

I've been to Bay Diagnostic and also to Bulls Auto Repair, both great outcomes.