X166 (166.873) GL550 rear shock replacement tutorial
Senior Member
Joined: Oct 2018
Posts: 255
Likes: 77
From: New Jersey
GL 450
Thanks for all the good advice here. I just noticed that my rear end is sagging once parked. It is bottoming out, I am pretty sure. The tire is up inside the wheel well when parked. This is both sides of the rear. It seems to inflate okay if you start it up. The front are fine.
Two questions, could it be anything other than the air bags? Is there a block or control mechanism that only controls the rear that could be the problem? It seems less likely to me that both go out at the same time. Could it be this part? https://www.rockauto.com/en/moreinfo...16651&jsn=1849
Second, if it is the air bags, are these the correct part? These look like just the bag, not the part that people are replacing above.
https://www.rockauto.com/en/moreinfo...=15005&jsn=911
I do have 106k miles, so maybe they just failed together?
I should add that I do not have an error code on the dash. It sounds like that happens with the valve block?
Hopefully its just the block, any thoughts are appreciated.
Two questions, could it be anything other than the air bags? Is there a block or control mechanism that only controls the rear that could be the problem? It seems less likely to me that both go out at the same time. Could it be this part? https://www.rockauto.com/en/moreinfo...16651&jsn=1849
Second, if it is the air bags, are these the correct part? These look like just the bag, not the part that people are replacing above.
https://www.rockauto.com/en/moreinfo...=15005&jsn=911
I do have 106k miles, so maybe they just failed together?
I should add that I do not have an error code on the dash. It sounds like that happens with the valve block?
Hopefully its just the block, any thoughts are appreciated.
Last edited by silvergl; Feb 28, 2023 at 05:25 PM.
Senior Member
Joined: Jan 2015
Posts: 306
Likes: 78
gl450
Thanks for all the good advice here. I just noticed that my rear end is sagging once parked. It is bottoming out, I am pretty sure. The tire is up inside the wheel well when parked. This is both sides of the rear. It seems to inflate okay if you start it up. The front are fine.
Two questions, could it be anything other than the air bags? Is there a block or control mechanism that only controls the rear that could be the problem? It seems less likely to me that both go out at the same time. Could it be this part? https://www.rockauto.com/en/moreinfo...16651&jsn=1849
Second, if it is the air bags, are these the correct part? These look like just the bag, not the part that people are replacing above.
https://www.rockauto.com/en/moreinfo...=15005&jsn=911
I do have 106k miles, so maybe they just failed together?
I should add that I do not have an error code on the dash. It sounds like that happens with the valve block?
Hopefully its just the block, any thoughts are appreciated.
Two questions, could it be anything other than the air bags? Is there a block or control mechanism that only controls the rear that could be the problem? It seems less likely to me that both go out at the same time. Could it be this part? https://www.rockauto.com/en/moreinfo...16651&jsn=1849
Second, if it is the air bags, are these the correct part? These look like just the bag, not the part that people are replacing above.
https://www.rockauto.com/en/moreinfo...=15005&jsn=911
I do have 106k miles, so maybe they just failed together?
I should add that I do not have an error code on the dash. It sounds like that happens with the valve block?
Hopefully its just the block, any thoughts are appreciated.
Junior Member
Joined: Dec 2010
Posts: 66
Likes: 4
gl450
Thanks for all the good advice here. I just noticed that my rear end is sagging once parked. It is bottoming out, I am pretty sure. The tire is up inside the wheel well when parked. This is both sides of the rear. It seems to inflate okay if you start it up. The front are fine.
Two questions, could it be anything other than the air bags? Is there a block or control mechanism that only controls the rear that could be the problem? It seems less likely to me that both go out at the same time. Could it be this part? https://www.rockauto.com/en/moreinfo...16651&jsn=1849
Second, if it is the air bags, are these the correct part? These look like just the bag, not the part that people are replacing above.
https://www.rockauto.com/en/moreinfo...=15005&jsn=911
I do have 106k miles, so maybe they just failed together?
I should add that I do not have an error code on the dash. It sounds like that happens with the valve block?
Hopefully its just the block, any thoughts are appreciated.
Two questions, could it be anything other than the air bags? Is there a block or control mechanism that only controls the rear that could be the problem? It seems less likely to me that both go out at the same time. Could it be this part? https://www.rockauto.com/en/moreinfo...16651&jsn=1849
Second, if it is the air bags, are these the correct part? These look like just the bag, not the part that people are replacing above.
https://www.rockauto.com/en/moreinfo...=15005&jsn=911
I do have 106k miles, so maybe they just failed together?
I should add that I do not have an error code on the dash. It sounds like that happens with the valve block?
Hopefully its just the block, any thoughts are appreciated.
