Noise from left rear wheel well after parking

MPowerZ32 · 11-12-2013, 03:11 PM

I've noticed a strange humming noise in the left rear wheel well after shutting down the car. This happens occasionally, not every time. It almost sounds like a fan spinning. This noise will last about a minute or two then goes away. The car drives perfectly though. I couldn't quite pinpoint the exact location. But for sure sounds like from the driver side. My E90 has stock EDC suspension. I can't think of anything that would resemble a fan in that area. Could anybody shed some light on this? Thanks!

fsmtnbiker · 11-15-2013, 05:38 PM

The Leak Detection Pump for the evaporative emissions system and gas tank is inside the bumper just behind the rear wheel on the driver's side. You're probably hearing it run.

Z K · 11-15-2013, 05:54 PM

I get that noise all the time. I think it's the fan for the radio amp since that is in the rear corner.

11-12-2013, 03:11 PM	#1
MPowerZ32 Banned 66 Rep 598 Posts Drives: Man Join Date: May 2012 iTrader: (4)	Noise from left rear wheel well after parking I've noticed a strange humming noise in the left rear wheel well after shutting down the car. This happens occasionally, not every time. It almost sounds like a fan spinning. This noise will last about a minute or two then goes away. The car drives perfectly though. I couldn't quite pinpoint the exact location. But for sure sounds like from the driver side. My E90 has stock EDC suspension. I can't think of anything that would resemble a fan in that area. Could anybody shed some light on this? Thanks!
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11-15-2013, 05:38 PM	#2
fsmtnbiker First Lieutenant 620 Rep 327 Posts Drives: E92 M3, Evora S, E36 Join Date: Jul 2013 Location: Phoenix, AZ iTrader: (0)	The Leak Detection Pump for the evaporative emissions system and gas tank is inside the bumper just behind the rear wheel on the driver's side. You're probably hearing it run. __________________ Chris
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11-15-2013, 05:54 PM	#3
Z K Major General 1889 Rep 5,506 Posts Drives: E90 M3, G20 M340i Join Date: Jul 2011 Location: San Francisco iTrader: (3)	I get that noise all the time. I think it's the fan for the radio amp since that is in the rear corner. __________________ Auto Detailing Enthusiast!
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