2000 BMW 530 whistle sound

2000 BMW 530
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GILDEVI
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  • 1 POST
Noises problem
2000 BMW 530 Engine Size unknown Wheel Drive Type unknown Automatic 85,000 miles
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My car makes a whistling sound. I hear it when I start to accelerate and it stops when it hits about 2000 rpm and/or 40mph. On the highway (warmed up? high speed?) it seems to stop. I cleaned out the air filter a couple months ago and it appeared to stop, but now it is back. What is this?
Mar 8, 2008 at 8:13 PM
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DOCHAGERTY
  • ✓ASE Certified Mechanic
  • 9,606 POSTS
  • ASE Certified Mechanic
the cyclone separator will require replacement PN 11-51-7-501-566
Mar 11, 2008 at 2:16 AM
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