rough idling

BMW 318
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STEPHEN M
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  • 1 POST
1997 BMW 318is. 182000km. My car has developed a rough idle in nuetral and low gear - instead of idling at about 900rpm it is idling betwen 500rpm and 1000rpm, with a tendency to settle down around 500 rpm. It is more difficult to start and needs gas to stop it from stalling while idling. No problem in higher gears. Any idea as to the problem?
Oct 23, 2007 at 10:07 PM
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DOCHAGERTY
  • ✓ASE Certified Mechanic
  • 9,606 POSTS
  • ASE Certified Mechanic
possibly the crank case vent valve has failed
part # is 11-15-7-501-567
it is right on top of the manifold.
Oct 29, 2007 at 10:47 AM
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