745LI blueish grey smoke

2003 BMW 745
75,000 MILES • V8 • AWD • AUTOMATIC
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ALISON
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  • 2 POSTS
I have a 2003 745li and when I accelerate from a complete stop blueish, grey smoke comes out. Sometimes it is alot and other times it is not at all and also I have a service ingine soon light on, and the dealer BMW in Germany don't have a clue as to why it is on. They keep resetting it but it still comes on after about 20miles after I have driving it from the BMW dealer. Please help a soldier and her car. Thanks
Aug 16, 2011 at 9:58 AM
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MHPAUTOS
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  • 31,937 POSTS
You are burning oil, what grade of oil is being used and when was it last changed? THE SERVICE LIGHT SHOULD BE RE SET WITH A SCANNER, ARE THEY USING IT? AND DID THEY CHECK FOR ANY FAULT CODES?
Aug 16, 2011 at 3:45 PM
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ALISON
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  • 2 POSTS
i am using castro 5w30 full synthetic, they have told me that it is a secondary fault code.
Aug 16, 2011 at 11:52 PM
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DOCHAGERTY
  • ✓Experienced Mechanic
  • 9,606 POSTS
Have the crankcase vent valves been replaced yet?
Mar 11, 2013 at 11:29 AM
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