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Old 02-03-2007, 01:17 AM
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Question "New" 500SEL - Whining noise coming from trunk

I inherited a 500SEL which I drove for the first time today and there's this constant whining noise coming from somewhere in the trunk. Is this the fuel pump? Vacuum pump?

I tried a search but I haven't been able to find any other threads on this. Someone please tell me this isn't normal, it's driving me .

Other than that this car seems very nice. Just gotta get me some Euro lights!

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Last edited by 81Wagon; 02-03-2007 at 02:22 AM. Reason: Typo
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Old 02-03-2007, 03:48 AM
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It may well be a fuel pump on the way out, have a listen to the right rear (from the back of the car - LHD passenger side) when the car is started, but stationary, you should be able to hear the pump whirr but not whine.

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Old 02-03-2007, 10:04 AM
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It could be a loud fuel pump, but that doesn't necessarily mean its soon to fail. It may whine like that for years before failing.

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