Pump under driver side bumper near fender
02-05-2010, 12:43 PM
#1
Super Member
Thread Starter
Pump under driver side bumper near fender
Anybody know what this pump does. It's running overtime, think it's for the driver side airmatic but anybody confirm ?
Whirring sound in the a.m. Not the loud, clug clug pump which I believe is the brake system
Whirring sound in the a.m. Not the loud, clug clug pump which I believe is the brake system
Last edited by regor60; 02-05-2010 at 12:46 PM.
02-05-2010, 12:54 PM
#2
MBWorld Fanatic!
You are correct. It is the Airmatic pump that feeds the whole system. If it's working overtime the pump is going bad or you have a leaking strut.
02-05-2010, 12:55 PM
#3
Senior Member
Becarefull, because if you hear it running frequently maybe you have a leak and you probably would have to change that air compresor as well as the strut where the leak is.
This is the weak part in our cars.
02-05-2010, 01:33 PM
#4
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2005 E55, 2009 VW GLI
there are two pumps in that area. one is your AIR pump, which sounds like a vacuum cleaner and always turns on at cold start. the other is the AIRmatic compressor, which has already been stated.
Last edited by O-55; 02-05-2010 at 05:09 PM.
