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135Dan · 04-18-2012, 01:40 PM

I've noticed a lot of blue smoke on cold starts recently just for the first "puff". It's definitely smoke as it lingers in the air. Could this be carbon build up? I have hit 37k miles. Seems like it's about that time

04-18-2012, 01:40 PM	#93
135Dan New Member 2 Rep 21 Posts Drives: 135i Join Date: Mar 2009 Location: Surrey iTrader: (0)	Smoking exhaust a symptom? I've noticed a lot of blue smoke on cold starts recently just for the first "puff". It's definitely smoke as it lingers in the air. Could this be carbon build up? I have hit 37k miles. Seems like it's about that time
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