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  BMW Forums » BMW discussion forums » General BMW
  Blowing White Smoke While Accelerating

 Blowing White Smoke While Accelerating



Hi Everyone,
Just wondering if anyone knows why my 7 series blows an excessive amount of white smoke when i accelerate hard, it only happends once then its fine and wont do it again?
Joanne
   Reply » Blowing White Smoke While Accelerating

Condensation in your exhaust system is being turned into steam. Once it blows off it doesn't form again until everything cools down.

   Reply » Blowing White Smoke While Accelerating

White "smoke" emerging from cars is usually steam, like Bob already stated above.
However the fact that you've noticed it in your rear mirror while accelerating (when you usually rather look where you're actually going) would indicate an abnormally huge cloud compared to the normal condensation effects. Especially also considering the usually rather hot fair dinkum Australian climate...

Just keep an eye on it - could well be a head gasket slowly going bad.


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