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BMW 3-Series (E90 E92) Forum
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Loud pumping noise under bonnet when driving...
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06-02-2016, 02:16 AM | #1 |
Major General
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Loud pumping noise under bonnet when driving...
Sounds like a washing machine preparing for a spin cycle... or like an a/c system that is being over worked...
Only happens when driving.. and can be felt in the car / heard... No fault codes... Oil pump again? Well over 100k miles now. Would be a shame if it was the oil pump again. Only replaced at 77k miles. |
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