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      10-06-2014, 09:14 PM   #1
dm874
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Are My Turbo's Shot? HELP!!! Freaking out (video)

Hey so I started up my 135i and as soon as my Rpm's get to 3000 I hear an extremely loud and annoying high pitched whine. It's almost like a windup sound, not a rattle.

I did some investigative work and I discovered that when I disconnect the vacuum tanks the whine goes away!

If my turbo's are shot, is it still under warranty? 09' with 72k

Last edited by dm874; 10-08-2014 at 06:07 PM.
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      10-07-2014, 12:56 PM   #2
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Update: Even after I disconnect the lines that go to the vacuum tank it only delays the whine for about 2000 rpm

Connected: Whine starts at 3000 rpm
Disconnected: starts at 5000 rpm and less loud
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      10-07-2014, 01:31 PM   #3
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Can you post a video so we can hear the sound its making. Its possible that it could be a leak or something really simple.
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      10-08-2014, 06:07 PM   #4
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      10-09-2014, 08:37 AM   #5
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Sounds like a belt to me
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      10-09-2014, 10:32 AM   #6
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The car was hit literally where the passenger side headlight is. The tip of the rail was slightly bent but was replaced. The rad support had a small crack(decided to replace it anyway).

So it wouldn't make sense to me that the belt is bad. Would I get a message displaying that the engine is running on reduced power if the belt is bad or the bearings?
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      10-12-2014, 01:37 PM   #7
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bump for help
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      10-22-2014, 09:44 PM   #8
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Those turbos are shot.
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      11-07-2014, 06:32 PM   #9
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Definitely not the turbos. Pulley or belt because the sound moves with rpms
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      11-08-2014, 09:31 AM   #10
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Have you checked the tensioner, pulleys and belt for the accessories system, i.e. aircon, etc.
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      11-08-2014, 11:49 AM   #11
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I ruled out a bad belt, tensioner, etc because I wouldn't be getting a "engine malfunction, loss of power" code from that. I had a friend who's a mechanic look at the car and he said the turbo's aren't engaging(driving with no turbo's basically). So unfortunately I will be planning a trip to the stealership within the next few days.

Hopefully the repair gets covered. I know the wastegate problem gets covered but this isn't a rattle like you hear from the wastegates...something else must have broke
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      11-13-2014, 04:12 AM   #12
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why would you not be getting an engine malfunction of a belt?

it definetly sounds like a belt or rubbing from a fan in the front of the engine bay
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      11-26-2014, 06:42 PM   #13
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Quote:
Originally Posted by mcmn View Post
why would you not be getting an engine malfunction of a belt?

it definetly sounds like a belt or rubbing from a fan in the front of the engine bay
Agreed, just because a bearing is shot in a pulley or the belt is screeching doesn't mean it would throw a code.
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