Question about 2005 BMW X5 4.4i
I replaced the valve seals and the ccv recently. car still smokes white smoke on idle
Common problem for the age of Bmw. It's the OSV. Oil separator valve. Unless you have 300k miles it's not the Piston rings.
Posted on Nov 25, 2014
I HATE TO TELL YOU THIS, BUT A WHITISH LIGHT BLUE SMOKE IS NOT YOUR VALVE SEALS....IT IS YOUR PISTON RINGS. IF YOU REV YOUR ENGINE, AND MAKES MORE SMOKE, IT IS DEFINITELY YOUR RINGS.
Posted on Nov 20, 2014
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Posted on Jan 02, 2017
What type of smoke can you see---
If you see a wispy, lingering white smoke that has a bittersweet smell, this is an indication that your car's engine coolant is leaking into the combustion chambers. This may be due to a leaky head gasket, or in a worst case scenario, a cracked cylinder head.
Make sure to take your car to the shop right away to get it fixed.
Thick white smoke---
If your vehicle is belching white smoke upon start-up, it is a sign that transmission fluid is entering the combustion chambers, possibly though a vacuum tube that connects the engine to the transmission.
This type of smoke can be confused with the normal puff of steam during start-up. If you are not sure, have your car inspected at the shop.
A blue/white smoke is an indication that oil is being sucked into the combustion chambers through the valve guides. A quick fix for this problem is by replacing the valve seals. Valve seals are small, umbrella shaped pieces of rubber.
Do rate the solution.
Posted on Feb 09, 2009
SOURCE: 2002 525I Just after recent
I had a similar problem with my 2003 325iT w/59K miles last week, right after an oil change. It did it more often when starting the car, and once or twice when accelerating. Then it stopped smoking and hasn't in several days. My mechanic neighbor suggested that it may have been too much oil, that has corrected itself by burning off. I hope he's right. I figure the smoke stopping is either a good thing or a really bad thing. No engine warning lights or anything, so I guess all is well.
Posted on Jul 29, 2008
SOURCE: 325i BMW emitting white smoke
You are smelling burning antifreeze. likely a head gasket but only testing will determine that for sure...Do not drive it. get it to a shop or more damage is likely.
Posted on Mar 18, 2009
white smoke is caused by coolant leaking into the cylinders. This comes from either a cracked head, or blown head gasket. You're probably also experiencing a slow, steady loss in coolant as well, and in some cases, you may find oil in the coolant, though BMWs don't always do so. It will often happen after it's overheated for some reason, but is not always the case. You need to get your car checked out right away, as this can damage your engine significantly in a short amount of time.
Posted on Feb 21, 2010
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