Quote:
Originally Posted by Jet1990
Hi all I've owned my 330i for around 3 weeks now n I've noticed that the car seems to give off quite abit of white smoke even when the engine is upto temp.
First thing in the morning there's no smoke and after 5 mins it's smoking like how cars do in in a morning. This also happens regardless of the time of day. I have a fault code saying g the nitric oxide cat is ageing so I'm wondering if that could be the issue. I've also read that it could be the head gasket gone. Engine is on 70k. The recent service shows that they swapped the exhaust cam shaft sensor swapped with inlet manifold. Does this mean anything to anyone?
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I had a similar issue. It was a sensor malfunction resulting in excessive fuel being used, hence white smoke. It was evident on tick over and really evident on hard acceleration.