2003 BMW 525i

2003 BMW 525I
119 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
DARIUS739
  • MEMBER
  • 1 POST
BMW 525i 2003; gives off white smoke only when it's been sitting awhile, and only when I first start it, idles rough but runs good on highway
Jan 9, 2011 at 2:07 PM
Advertisement
Avatar
DOCHAGERTY
  • ✓Experienced Mechanic
  • 9,606 POSTS
White smoke! Is the engine putting out white smoke when it is cold and been sitting awhile? The experience you are having is quite normal, although I think you might want to inspect and/or replace the spark plugs. At 100k they should have been replaced, along with the pre-cat oxygen sensors.
Jan 9, 2011 at 4:24 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.