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Kevin
Kevin, BMW Mechanic
Category: BMW
Satisfied Customers: 1441
Experience:  Diagnostic technician
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2009 Mercedes GL 450: The rear Airmatic leaks-down rapidly

Customer Question

2009 Mercedes GL 450: The rear Airmatic leaks-down rapidly some days to not-at-all on other days. Hot days seem to accelerate the leak-down. However this has been rapid leak-down foe 3 days now.
Q: Is there a Mercedes recall on this problem?
Q: What procedures are recommended to determine the cause of this problem?
Submitted: 12 months ago.
Category: BMW
Expert:  Kevin replied 12 months ago.

Hi im kevin can i ask a few questions first then il try to assist .so is suspension going down when car not running? So when you return to car its lowered ?

Customer: replied 12 months ago.
Expert:  Kevin replied 12 months ago.

Ok it certainly sounds like you have a leak the most common place is the rear air suspension bags leaking .there arent any recalls but they are a common fauliure. If you raise vehicle up then spray bags with soapy water .normally you will be able to see bubbles from the leaking area to confirm leak.other than this the car would need to be plugged into diagnostic machine to read fault codes and check pressures in system