Strange Hum from left rear wheel well
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From: Fort Worth, TX
I parked my car in the garage after drive home and about 40 minutes later went to get something from the garage and noticed a strange hum in the rear left wheel well. Upon closer inspection, the hum turned out to be some sort of fan going non stop under trim in the trunk. Tried to reset the cars' idrive, no effect. It has been over an hour now, and the hum won't stop, that fan just keeps spinning. What could that be?
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From: Denver
My Ride: 07' 550i
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Did you ever figure out what the humming noise was? Over the past few days I've heard the same thing. It usually happens after my car has been sitting out in the sun for for a while.
I guess I'll take it into the stealership and see what they say.
I guess I'll take it into the stealership and see what they say.
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From: Portland, Oregon, USA
My Ride: 2006 550i, 1984 Mercedes Gelandewagen
It's the audio amp. It's located on the left side of the trunk. It runs two fans to cool off...
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Joined: Jul 2009
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From: Denver
My Ride: 07' 550i
Options: Titanium Gray, STEPTRONIC 6-Speed, Sport Package, Cold Weather Package, Premium Package, Active Stering, Power Rear Sun Shade, Anthracite Maple Wood Trim, Alcantara Headliner, Ventilated Comfort Seats in Black Nasca Leather, Navigation, Heads-up Display, HD Radio, Satellite Radio, Logic 7 Sound w/ CD Changer, Adaptive Xenon Headlights, Folding Rear Seats with Ski Bag, Park Distance Control, Bluetooth
Options: MTech Bumpers, Sprint Booster V2, RPi Scoop, Clear Bra, K&N Drop-in Filter, Predator ICE V3 Angel Eyes
Shouldn't those fans run almost silent? I'll have the AC on along with the radio and still be able to hear the humming from the back corner.
Pleanty of duct tape and WD-40 should do the trick, right?!
Pleanty of duct tape and WD-40 should do the trick, right?!
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From: Portland, Oregon, USA
My Ride: 2006 550i, 1984 Mercedes Gelandewagen
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My Ride: 2008 550i Jet Black on Black Leather, SAT with Paddles, Logic 7, Comfort Seats, NAV, Sport Package, PDC, Xenons, Sirius, Trinity 12W LED Angel Eyes, RPi GT Exhaust, M rear spoiler, ACS Roof Spoiler, Tinted Tail Lights, Bimmian Carbon Fiber Pillar Trim, Bimmian Shadow 550i emblem, RPi Scoop, E60 Forum Cling, Mtec bulbs in fog lights, Mtec 2W LED for License Plate Light Bulbs, K&N Filter, Bimmian LED Smoked Side Markers, Blackout roundels, Carbon Fiber Kidney Grills.
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So it hums along with the tune?? 
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