Vacuum pump help!
Thread Starter
Senior Member
Joined: Oct 2004
Posts: 308
Likes: 0
From: Honolulu, Hawaii
2001 E55, 2002 ML55, 2002 SL500, 2003 CLK55
Vacuum pump help!
Can anyone tell me if you can hear the vacuum pump under the rear seat running? Mine runs for a few seconds then stops then starts again.
Everything seems to be running fine in my car. Vents and locks are all good.
Thanks!
Everything seems to be running fine in my car. Vents and locks are all good.
Thanks!
Thread Starter
Senior Member
Joined: Oct 2004
Posts: 308
Likes: 0
From: Honolulu, Hawaii
2001 E55, 2002 ML55, 2002 SL500, 2003 CLK55
Thread Starter
Senior Member
Joined: Oct 2004
Posts: 308
Likes: 0
From: Honolulu, Hawaii
2001 E55, 2002 ML55, 2002 SL500, 2003 CLK55
Mine is loudest on start up. I guess it's pressurizing itself. Either there's too much ambient noise when I'm moving or the pump isn't running after start up. Going to ask my boy to listen more carefully when I get a chance.
Thanks!
Thanks!
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Joined: Mar 2006
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From: West Virginia
2001 E320 RWD - Brilliant Silver/Ash: 100,000+
I spoke without thinking that through. When I turn the key to position 2 (right before cranking) there is a slight "whirring" sound but that appears to come from the front somewhere. I should add that I have a minor hearing deficit so that might explain a mis-perception. You're welcome.
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Joined: Feb 2008
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From: Charleston, SC
GL450
I believe the nav/COMAND system spins up a fan when you turn the car on. I believe that's the noise from the front. It appears to also run for a little bit after turning the car off.
The air pump also powers the multicontour seats in the E55 and some other cars that are equipped with it. Renn, do your seats (it appears you have an E55) inflate properly?
The air pump also powers the multicontour seats in the E55 and some other cars that are equipped with it. Renn, do your seats (it appears you have an E55) inflate properly?
Thread Starter
Senior Member
Joined: Oct 2004
Posts: 308
Likes: 0
From: Honolulu, Hawaii
2001 E55, 2002 ML55, 2002 SL500, 2003 CLK55
I believe the nav/COMAND system spins up a fan when you turn the car on. I believe that's the noise from the front. It appears to also run for a little bit after turning the car off.
The air pump also powers the multicontour seats in the E55 and some other cars that are equipped with it. Renn, do your seats (it appears you have an E55) inflate properly?
The air pump also powers the multicontour seats in the E55 and some other cars that are equipped with it. Renn, do your seats (it appears you have an E55) inflate properly?
