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  #1  
Old 02-04-2013, 07:20 PM
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Rear left air suspension goes down sometimes

This is for a 2000 with rear air suspension.
ok so I recently replaced my rear left upper control arm.
I unplugged the self leveling sensor and I let air out the system.
So I put everything back together the bags filled right up with
air and everything was fine.
The next day the X5 was down to the ground on that side.
So I turn the car on and up it goes. Now a week later I was
driving with 3 passengers in the rear and the self level suspension inactive came up on the dash. I immediately stopped and see the left side is down once again.
The next day I turn the car on and the suspension goes right back up again and the suspension inactive error goes away after 5 mins of driving.
I get to work park the car and 5 mins later the suspension went back down. I opened the door and back up it came. Left it sitting came back 8 hours later and this time it didnt go down.
So now my question is do I need the self leveling sensor or
do I need a new air spring.
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Old 02-04-2013, 07:42 PM
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Did you disconnect any lines to let the air out of the system? You may just have an air leak from that.
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Old 02-04-2013, 07:58 PM
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Yeah I disconnected the air lines. I sprayed some soapy water on them and It doesn't seem to be leaking anywhere on the lines. I also checked all the air suspension fuses and they are fine.
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Old 02-05-2013, 12:10 AM
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Hmm, the fact you say there was an occurrence where it did not go down after 8 hours of sitting makes me think it may be a sticking/valve with dirt in it.
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Old 02-05-2013, 11:15 PM
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I took the sensor and cleaned it. I will see if it worked tomorrow morning.
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Old 02-06-2013, 03:25 PM
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Check to see if there are tiny little cracks on the airbag near the bottom, you should be able to find a picture online.
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Old 02-08-2013, 02:54 PM
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I just replaced the air spring. Gonna see what happens tomorrow
Morning.
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Old 02-09-2013, 10:40 AM
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Ok update for anyone with this issue searching.
This morning the rear did not drop. The new
Air spring solved the problem.
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Old 02-09-2013, 08:44 PM
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Was there a tear on the old air spring?
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Old 02-09-2013, 09:21 PM
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a few very small tear around it. Really have to see it up close with a lot of light
to see them.
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