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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Rattling sound when car starts, and when using AC



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      07-04-2013, 02:43 PM   #1
miringrains
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Rattling sound when car starts, and when using AC

I hope its not the wastegates, although that might be reason to do the turbos for free.. what do you guys think. How strict are they with that recall..?
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      07-04-2013, 03:03 PM   #2
tofu-
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is it a humming noise coming from the front of the car?

sometimes gets worse when you turn the steering wheel?
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      07-04-2013, 03:07 PM   #3
miringrains
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Quote:
Originally Posted by tofu- View Post
is it a humming noise coming from the front of the car?

sometimes gets worse when you turn the steering wheel?
Possibly, what does that indicate, alternator?
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      07-04-2013, 03:09 PM   #4
tofu-
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no idea. i have the problem i described. goes away when RPMs are above idle.


i think it might be pulley related (in my case).
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