smoke coming from tail pipe bmw x5

couks

New member
I have a 2005 bmw ACTIVITY / automatic 3.0 petrol. When i start up the car, lot of smoke is coming only from one of the 2 tail pipes. After a few seconds the smoke is gone. But when i idle and rev the car hard the smoke is back."

Can someone:praise: please tell me what the problem may be
 

Maljan

Active member
Smoking exhausts sometimes mean worn valve guides, but the 3.0 petrol is not (in)famous for that, AFAIK. Is there an oily deposit in the tailpipe? Only one exhaust smoking is quite interesting. Only some of the cylinders seem to be in on the Smokey act.

smokey-the-bear-classic.jpg
 

spawn616

New member
3 colors of smoke

blue is oil

black is fuel

white is water


blue relatively cheap to fix with maintaince

black is also cheap sometimes ,could be injector issue or pump or filter

white is problem in it could just be a pipe or a gasket, or its expansive and is the head gasket

so what color do you have, there are more professional ppl on here that can diagnose :sorry:
 

Webmaster

Administrator
I was gonna tell you to check you internal combustion engine, but I see others have more helpful suggestions :hammerhead:
 

couks

New member
spawn616 said:
3 colors of smoke

blue is oil

black is fuel

white is water


blue relatively cheap to fix with maintaince

black is also cheap sometimes ,could be injector issue or pump or filter

white is problem in it could just be a pipe or a gasket, or its expansive and is the head gasket

so what color do you have, there are more professional ppl on here that can diagnose :sorry:
it looks like a grey white smoke
 
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