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      08-12-2022, 12:05 PM   #2
sowbmw
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Drives: silver bmw 335i
Join Date: Mar 2016
Location: Toronto

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Sorry to hear. Never had this issue, but I had surging rpms at startup and decided to replace the valvetronic motor + reprogram. I also replaced the ignition coils. Car only surges once now.

I recommend switching out the ignition coils for Delphi (buy all 6 at once), clear codes, then drive. If valvetronic code comes back then maybe the valvetronic motor needs to be changed.
Appreciate 0