Question about BMW 750i

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My 2012 BMW 750 I WHEN IDLES WHITE SMOKE COMES FROM THE TAILPIPES with 36,000 miles what do that means

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  • Contributor
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If its a water vapor it might be cylinder head gasket or a crack on the cylinder head, if its an oil vapor it might be piston rings or valve guide seal or valve guide broken due to drive while cold.

Posted on Apr 16, 2015

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  • BMW Master
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White smoke means engine coolant is entering the engines cylinder's . Which could be a bad head gasket , cracked head or block , or intake manifold gaskets ! I wouldn't drive it like this you could damage the engine more !

Posted on Apr 14, 2015

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Posted on Jan 02, 2017

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SOURCE: when it idles for a

you have the n62 engine in this x5 valve guide seals are leaking causing the blue smoke but i hate to tell you people havnt had much luck with repair in fact i am replacing the cylinder heads on a 750 with the same engine right now after an attempt to replace the valve guide seals failed to resolve the problem

Posted on Jun 08, 2011

Hallidayz_In
  • 5 Answers

SOURCE: white smoke from buick tailpipes, wont start

I had the same problem with my '87 Buick LeSabre 2 years ago. But it didn't seem to fit right, the car was running fine up until it just didn't. I had 3 professional mechanics swear it was a blown head gasket. I researched thoroughly and found out this particular engine make has a DEFECTIVE upper intake manifold which can break down and cause coolant to leak into oil, simulating a blown head gasket. The NHTSA had issued a recal on SEVERAL GM cars with this engine, EXCEPT for the '97. I filed a complaint with the ODI and as of today it is now COVERED as a "Defect & Recall". NHTSA ID number 96V116000. This MAY be your problem if it is NOT the "usual" blown head gasket. Hope this helps.

Posted on Jul 16, 2009

  • 23 Answers

SOURCE: White smoke comming from the tail pipe suddenly with a strange sm

if the white smoke is in the morning,only then it is valve seals and if it is through out the day as your driving the vehicle then the engine need over houling,(rings metal and main bearing in the engine need to be relace,including valve seal , top gasket,botom gasket and oil seal for proper perfomance.

Posted on Dec 05, 2008

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When it idles for a while and then you step on the gas blue smoke comes out of the tail pipe 2004 BMW X5,4.4 with 90000km


you have the n62 engine in this x5 valve guide seals are leaking causing the blue smoke but i hate to tell you people havnt had much luck with repair in fact i am replacing the cylinder heads on a 750 with the same engine right now after an attempt to replace the valve guide seals failed to resolve the problem

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