750i Idle Smoking - Bimmerfest - BMW Forums

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7 Series - E65 / E66 (2002 - 2008)
Discussion of BMW's 4th generation E65/E66 7 Series flagship. The E65 generated much controversy, due to its radical styling and iDrive user difficulties. Nonetheless, the E65 broke records to become the best-selling 7-series iteration ever, especially after its 2005 facelift.

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Old 12-13-2012, 02:02 PM
regglm regglm is offline
Registered User
Location: Maryland
Join Date: Dec 2012
Posts: 2
Mein Auto: BMW 750i
750i Idle Smoking

Hello to ALL!!!!

I have read many of your post, in regards to the 2007 BMW 750i, having smoking issues. First, let me say very good reading and awesome information. I am experiencing those same issues and battling the idea of purchasing an extended warranty ($3700+) or getting it fixed, out of pocket. I really like the car and don't want to part ways with it.

Any suggestions?

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Old 12-23-2012, 06:06 PM
DonTabron DonTabron is offline
Registered User
Location: California
Join Date: Aug 2012
Posts: 2
Mein Auto: Bmw 745 li
im having white smoke coming out of my 745li every time i sit at a street light what could this problem be/
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Old 01-08-2013, 08:28 AM
Vee007 Vee007 is offline
Registered User
Location: South Africa
Join Date: Dec 2012
Posts: 21
Mein Auto: 740i
white smoke means that you are burning oil and may the sign of failing valve stem seals. Using seafoam may clean them off and restore them. I would suggest putting the seafoam in the oil and driving for about 20-50 miles and then changing the oil. Repeat with cheap dino oil and repeat 2-3 more times.

i have the same problem gents...but with mine i get a small puff of smoke after 4000rpm.its a once off puff until the next time i start my car.

some helpfull guys posted what is in my forst paragraph..hope it helps, i havnt tried it, becuses ive got a service booking for this problem on monday.
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