Quote:
Originally Posted by Molez93
I've only driven it a little bit since swapping the mediocre aftermarket gas cap for an OE BMW one, but the CEL may have gone away. At least, it didn't come back quickly as it had after clearing it before.
Still welcome any internet diagnosis though. :-)
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Everywhere I've read and what I experienced with the same code on my X3 was the gas cap. Hopefully it stays off, because digging deeper can be challenging.