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BMW 3-Series (E90 E92) Forum
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325i AT thudding / vibrating
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| 01-05-2014, 08:41 AM | #1 |
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Private
 4
Rep 51
Posts |
325i AT thudding / vibrating
Car was completely fine until last night. Under ~40 MPH I don't feel much but right above it there seems to be a thudding or wobbling feeling. Only gets worse at higher speeds it seems. Some other things I've noticed:
- no vibrating in steering wheel or pedals - goes away when I give it gas, comes back when coasting - not depending on whether or not I hit the brakes - no rough idle - seems a bit worse if I'm turning / wheel is not straight (ie taking an exit ramp off the hwy) Plan on bringing it in today, but hoping to get some insight as to what this may be. |
| 01-05-2014, 12:42 PM | #3 |
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Colonel
 
103
Rep 2,783
Posts |
Run flats are the culprit.
__________________
If no codes are being thrown use Chevron Techron fuel injector cleaner (concentrate). It solves rpm fluctuating upon cold start-up. Also, for most BMW problems start off by scanning your car with the Peake Research Tool. It contains the actual BMW codes. If you want to register a newly installed battery for free (just buy a $10 cable) and google/download BMWLogger
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