BMW Questions? Ask a BMW Repair Expert for Answers.
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this code is cold start camshaft B position timing over-retarded
this is a somewhat vague emissions code and could have a few possible causes. The most likely would be a failing vanos adjustment unit, but it could possibly also be a bad vanos solenoid or eccentric shaft sensor.
It would be ideal to invest in a proper scan and diagnostic with a BMW tool that can reveal more information about the true fault before replacing any parts
if you need a good non dealer option to cut down on costs, check out www.bimmershops.com or www.bimrs.org for options.
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