745LI blueish grey smoke

Tiny
ALISON
  • MEMBER
  • 2003 BMW 745
  • V8
  • AWD
  • AUTOMATIC
  • 75,000 MILES
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
Tuesday, August 16th, 2011 AT 4:58 PM

3 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 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?
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Tuesday, August 16th, 2011 AT 10:45 PM
Tiny
ALISON
  • MEMBER
  • 2 POSTS
I am using castro 5w30 full synthetic, they have told me that it is a secondary fault code.
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Wednesday, August 17th, 2011 AT 6:52 AM
Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
Have the crankcase vent valves been replaced yet?
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+1
Monday, March 11th, 2013 AT 6:29 PM

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