Quote:
Originally Posted by ard
Sounds like it may be a vanos issue, possible vanos actuator. In ther models, removing the solenoids, flushing them and replacing sealing rings can help. You often will get CPS and Vanos errors, many folks confuse the errors with "this part is bad". A cps error means 'the DME got a bad value from the CPS sensor'...this does NOT necessarily mean "the CPS is bad" Vanos errors will throw off valve timing.
Can you run a vanos actuator test? Or jsut a simple code reader? Invest in a computer or mechanic.
No warranty? 2012 with over 50k??
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Correct. The OEM BMW diagnostic tool will give a better explanation of the code and will also run a test schedule to help pinpoint the problem. It may be implausible signal, bad timing, no signal, etc.