Pump under driver side bumper near fender
Thread Starter
Super Member
Joined: Dec 2004
Posts: 783
Likes: 22
From: Atlanta
06 E55 Black
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; Feb 5, 2010 at 12:46 PM.
Senior Member
Joined: Jan 2009
Posts: 285
Likes: 26
'18 AMG GTR, '04 CL55, '04 E55, '03 CLK500, '01 E55,94 E500, '91 190E 2.5-16 EVOII, '86 560SL
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.
Senior Member
Joined: May 2008
Posts: 293
Likes: 20
From: Houston/Plano, TX
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; Feb 5, 2010 at 05:09 PM.
