08-15-2011, 10:07 AM
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#11 (permalink)
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A True Z Fanatic
Join Date: Jan 2009
Location: Florida
Posts: 1,428
Drives: N54 135i
Rep Power: 293
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Quote:
Originally Posted by Vaughanabe13
Is the noise always persistent or does it only happen intermittently? I'm just wondering because one night I started up the car and heard a high pitched noise (in the 09) but it was pretty faint and easily covered up by the stereo at low volume. After that night I haven't heard it since. Is it something that gets worse over time?
I'm an electrical engineer so I could probably take out the ECU and look for the bad caps or transistors that are causing the squeal, but I don't know if I want to go to that much effort if I can get it replaced under warranty...
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I have the issue and haven't gotten it fixed yet. '09. It happens on startup whenever you apply throttle. You can tap the throttle and get the whine. Eventually when the car warms up it's always there.
Annoying as hell. Hoping they come out with a TSB or something before my full warranty runs out. Really don't want to do the whole song and dance with the dealership to get it fixed.
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