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Thread: White smoke on start

  1. #1
    Join Date
    Sep 2017
    Location
    Toronto, Canada
    Posts
    1
    My Cars
    2012 BMW X1

    White smoke on start

    If I let the car (2012 X1) sit for a few days it blows a thick white smoke on start for about half a minute or so. There's also a slight smell of coolant (I think) blowing through the vents.
    Any idea what this could be?

    The car is also due for a timing chain replacement - is this related? In other words, will replacing the timing chain fix this?

    Cheers!

  2. #2
    Join Date
    May 2017
    Location
    USA
    Posts
    159
    My Cars
    E90, E46
    Your turbo oil feed line is bleeding oil pressure into the turbo while the car sits. Common issue and the new line has a check valve to prevent this in the future.

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