Skip the auto shop - Our mechanics make house calls

Q: White smoke while idling

asked by on

My car is emitting white smoke while idling. Does it need a valve stem replacement?

A: White smoke while idling is normally reason...

White smoke while idling is normally reason to believe that your BMW may need the valve stems replaced, however this can also be the sign of bad Crankcase Ventilation (CCV) gaskets. On top of those possibilities, there are many things that can cause white smoke at idling, therefore I recommend enlisting the assistance of a certified mechanic, such as one from YourMechanic, to come by and diagnose your BMW in person. They will have the knowledge needed to quickly identify the cause of the white smoke. They will also have the tools and experience necessary to assist with the repairs needed to keep your BMW from polluting.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car won't start - 2005 Ford Explorer

The first question to answer for yourself is, does the engine attempt to start, also known as cranking over? If not, then you need to be concerned with your starting system. The battery may be powerful enough to power accessories,...

Q: Bmw 745i Transmission Failsafe

Transmission Failsafe means that the transmission controller has detected a problem with the transmission or any of it's sensors that is preventing it from working properly. In your case it seems to see a problem when you attempt to get...

Q: can a 2006 automatic engine fit into a 2002 manual 325i?

I looked up the two applications. Those two engines use completely different castings for both the heads and the block and the flywheel (flex plate) is different as well which will make it incompatible with your transmission. If you search...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.