Quote:
Originally Posted by Ilma
I had myturbos replaced a few months ago on my 2008 135i so they are pretty new......and with the colder weather, I too have recently noticed what i consider to be an above average amount of smoke when the car is at idle.
However, as already suggested....the smoke has absolutely no odour to it at all and subsides once you rev the engine.
Looks like condensation to me but there is so much of it.....I can only assume that the stock pre-catalytics are doing a really good job of converting the exhaust gases to H2O.
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It's almost certainly condensation. If it was oily, you'd know about it and would probably be able to smell some form of burning. Have you tried putting your hand over one of the exhaust pipes and seeing if you have oily deposits? I don't think you will somehow...
As long as the smoke blows clear when the engine is under load, and there's no smell, you're good to go with nothing to worry about
