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N55 squeal noise
| 03-30-2018, 01:52 AM | #1 |
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Hey guys i have a 2012 bmw 335i, i had the ofhg blow at 50k and ever since my car had been making this squeal noise. Belts and and pulleys and also tensioner has been replaced. Please watch video and help me out thanks. Also car has been various times at dealer and have been told its nothing to be worried about . That its normal for turbo cars to make this noise.
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| 03-30-2018, 10:34 AM | #3 |
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Second Lieutenant
 
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Not normal
Doesn't seem normal to me. Do you have any signs of a small oil leak? Could oil have dripped on the belt or one of the pulleys and be causing the belt to slip and squeal slightly?
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| 03-30-2018, 10:43 AM | #4 | ||
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Quote:
Quote:
Only leak i had was oil filter housing gasket, and after that all my belts and pulleys including tensioner were replaced , noise only happens mostly when i drive aggressively i would say in sport mode, could be an oil leak i will look for that today . |
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| 03-30-2018, 11:50 AM | #5 |
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I would have someone rev the car while i listen under the hood, under the car, and behind exhaust. Doesn't sound like 'squeal' to me but more like air escaping.
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