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2004 BMW X5 Back end sags

Tiny
TECHISLIFE
  • MEMBER
  • 2004 BMW X5
  • 4.4L
  • V8
  • AWD
  • AUTOMATIC
  • 120,500 MILES
The back end of my X5 sags, I know this is due to the air suspension, but what I do not know is how to test at what level the system has failed. When I lifted the back end and took a look at the air bags, they seemed to be inflated without any punctures. When I took the compressor out and then took out the fuse (7.5) to it from the fuze box and put it back in, the compressor hisses then nothing.

Any thoughts?
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Thursday, August 6th, 2015 AT 9:04 AM

1 Reply

Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
If there is leak, and it seems as if there is, spray soapy water on the air bags and fittings.
If the compressor isn't functional, the relay can be replaced as it is the only serviceable item in that system.
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Monday, August 10th, 2015 AT 7:38 AM

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