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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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Old 12-19-2012, 10:40 PM
banyehaozi banyehaozi is offline
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Location: Toronto
 
Join Date: Dec 2012
Posts: 1
Mein Auto: 330i
Whirring/Humming Noise?

I recently purchased a used 2006 bmw 330i.
Everything is about the car is great, however, there is a very annoying whirring/buzzing noise. The noise dies down at high speeds, but it is very obvious at low speeds.
The noise is there even when the a/c is off, and fluctuates with different rpms, its really loud during idle and initial acceleration. Iv sat in my friends 328 and there is no noise at all.
Anyone know what the problem might be before I take the car to a mechanic?
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  #2  
Old 12-20-2012, 06:27 AM
CALWATERBOY's Avatar
CALWATERBOY CALWATERBOY is offline
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Location: San Francisco
 
Join Date: Aug 2009
Posts: 10,009
Mein Auto: 2009 E93 N54
Quote:
Originally Posted by banyehaozi View Post
I recently purchased a used 2006 bmw 330i.
Everything is about the car is great, however, there is a very annoying whirring/buzzing noise. The noise dies down at high speeds, but it is very obvious at low speeds.
The noise is there even when the a/c is off, and fluctuates with different rpms, its really loud during idle and initial acceleration. Iv sat in my friends 328 and there is no noise at all.
Anyone know what the problem might be before I take the car to a mechanic?

Post a YouTube.

Could it be your engine?
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