why is white smoke coming from tailpipe

Asked by Roffo Dec 20, 2012 at 08:04 AM about the 2007 BMW X5 4.8i AWD

Question type: Maintenance & Repair

2 Answers

9,785

Well hate to tell you but you have the N62 engine that is having problems with valve stem seals going bad causing oil consumption and white smoke from the tail pipe. But there are a couple of things that need to be checked before jumping to this. One is the crankcase vent valves on both valve covers if those diaphragms are torn then you could be burning oil from increased crankcase suction causing the white smoke. If those are fine then you will need to check compression and do a cylinder leak down test if those pass then its the valve stem seals. I have done a few of these jobs already it is very extensive.

31 people found this helpful.

Your Answer:

X5

Looking for a Used X5 in your area?

CarGurus has 1,133 nationwide X5 listings starting at $3,995.

Postal Code:

CarGurus Experts

  • #1
    Robert Charlson
    Reputation
    1,410
  • #2
    Asiamah6910
    Reputation
    1,330
  • #3
    santarosacarguy
    Reputation
    1,180
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used BMW X3
40 Great Deals out of 997 listings starting at $4,995
Used BMW X6
13 Great Deals out of 211 listings starting at $9,800
Used BMW 5 Series
18 Great Deals out of 323 listings starting at $4,500
Used BMW 3 Series
71 Great Deals out of 1,168 listings starting at $1,795
Used Porsche Cayenne
17 Great Deals out of 318 listings starting at $6,995
Used Audi Q7
25 Great Deals out of 505 listings starting at $7,190
Used Acura MDX
37 Great Deals out of 756 listings starting at $6,495
Used Land Rover Range Rover Sport
38 Great Deals out of 653 listings starting at $5,950
Used Lexus GX
4 Great Deals out of 54 listings starting at $13,800

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.