Won’t rise
Thread Starter
Newbie
Joined: Jun 2020
Posts: 10
Likes: 1
From: Philly
S550
Won’t rise
Hi guys, i was driving my 07 s550 this weekend when I got the “car too low; sop driving” dash warning. After further inspection, I see the rear driver side is sitting low and does not rise with the rest of the vehicle. How can I determine the issue here? Compressor pump? Leak?
Super Member
Joined: Jul 2014
Posts: 992
Likes: 245
From: Tucson, AZ
'20 X5 M50i; '17 Ram 3500; Golf Cart; Bikes; Scooters
You are on the right track.
Could be the LR air spring bladder, the line to the spring, or the valves that control the spring.
I believe the rear height is controlled by one sensor, so the sensor is likely not at fault.
Can you raise the car (maybe 3 corners) with the dash button & engine running? If so, the pump is working. And a bad pump would show all around the car, not just LR.
Best course of action is diagnostics with a Star system. It can help pinpoint the problem. Otherwise, you may be spending time and throwing parts at it.
I have not dug into this system yet so I can't give you too many details, just the general starting point.
Keep us posted on the results.
Could be the LR air spring bladder, the line to the spring, or the valves that control the spring.
I believe the rear height is controlled by one sensor, so the sensor is likely not at fault.
Can you raise the car (maybe 3 corners) with the dash button & engine running? If so, the pump is working. And a bad pump would show all around the car, not just LR.
Best course of action is diagnostics with a Star system. It can help pinpoint the problem. Otherwise, you may be spending time and throwing parts at it.
I have not dug into this system yet so I can't give you too many details, just the general starting point.
Keep us posted on the results.
Thread Starter
Newbie
Joined: Jun 2020
Posts: 10
Likes: 1
From: Philly
S550
You are on the right track.
Could be the LR air spring bladder, the line to the spring, or the valves that control the spring.
I believe the rear height is controlled by one sensor, so the sensor is likely not at fault.
Can you raise the car (maybe 3 corners) with the dash button & engine running? If so, the pump is working. And a bad pump would show all around the car, not just LR.
Best course of action is diagnostics with a Star system. It can help pinpoint the problem. Otherwise, you may be spending time and throwing parts at it.
I have not dug into this system yet so I can't give you too many details, just the general starting point.
Keep us posted on the results.
Could be the LR air spring bladder, the line to the spring, or the valves that control the spring.
I believe the rear height is controlled by one sensor, so the sensor is likely not at fault.
Can you raise the car (maybe 3 corners) with the dash button & engine running? If so, the pump is working. And a bad pump would show all around the car, not just LR.
Best course of action is diagnostics with a Star system. It can help pinpoint the problem. Otherwise, you may be spending time and throwing parts at it.
I have not dug into this system yet so I can't give you too many details, just the general starting point.
Keep us posted on the results.
MBWorld Fanatic!
Joined: Oct 2010
Posts: 5,142
Likes: 1,295
From: Southern US
2010 E550, 273 Engine: 2012 S550, 278 Engine
You are on the right track.
Could be the LR air spring bladder, the line to the spring, or the valves that control the spring.
I believe the rear height is controlled by one sensor, so the sensor is likely not at fault.
Can you raise the car (maybe 3 corners) with the dash button & engine running? If so, the pump is working. And a bad pump would show all around the car, not just LR.
Best course of action is diagnostics with a Star system. It can help pinpoint the problem. Otherwise, you may be spending time and throwing parts at it.
I have not dug into this system yet so I can't give you too many details, just the general starting point.
Keep us posted on the results.
Could be the LR air spring bladder, the line to the spring, or the valves that control the spring.
I believe the rear height is controlled by one sensor, so the sensor is likely not at fault.
Can you raise the car (maybe 3 corners) with the dash button & engine running? If so, the pump is working. And a bad pump would show all around the car, not just LR.
Best course of action is diagnostics with a Star system. It can help pinpoint the problem. Otherwise, you may be spending time and throwing parts at it.
I have not dug into this system yet so I can't give you too many details, just the general starting point.
Keep us posted on the results.
The only way is to look at the air spring and the air tubing to it. Also the valve could be leaking, which the scanner would not know to tell about either.
