drivers side rear suspension sinking
Thread Starter
Super Member
Joined: Dec 2002
Posts: 560
Likes: 1
From: FL
2000 S500 Brilliant Silver, 1990 BMW 735iL, 1971 Pontiac Trans Am 455 HO, 1976 Pontiac Formula 400
drivers side rear suspension sinking
After sitting overnight, the rear drivers side is bottomed out, but rises fine when I start the car. I am getting no error messages.
Is this likely a leaking strut, and if so, is replacing it a DIY?
Thanks
Is this likely a leaking strut, and if so, is replacing it a DIY?
Thanks
Junior Member
Joined: Nov 2011
Posts: 48
Likes: 5
2008 S550
Reconnect battery while all 4 off the ground and turn on the ignition, pump will kickin as the presure has dropped. Remove from jack stands and drive out those error codes..you are good to go! I bought new one's divers side front and rear. When I get my tranny fixed I will do the passanger side.
Thread Starter
Super Member
Joined: Dec 2002
Posts: 560
Likes: 1
From: FL
2000 S500 Brilliant Silver, 1990 BMW 735iL, 1971 Pontiac Trans Am 455 HO, 1976 Pontiac Formula 400
Is there a way to tell if the strut is bad or if it something else like a line or distribution box?
Also where is the top mount for this strut, in the trunk or somewhere more difficult to access?
Also where is the top mount for this strut, in the trunk or somewhere more difficult to access?
Junior Member
Joined: Nov 2011
Posts: 48
Likes: 5
2008 S550
I had the front of the car sinking on me. MB dealer star diag showed bad distribution block. Had that replaced. Its under the front bumper on passanger side if I am not mistaken. Next to the pump. Really hard to diag that one. Watched them find the fault. Had to go from the pump to the dist block then the cylinder. Fault come back to the cylinder. Funny to watch as the pump does what the computer tells it to do pushing presure to the dist block and then to the pneumatic cylinders. Come back with a distribution error! New dist block. $$$
Junior Member
Joined: Nov 2011
Posts: 48
Likes: 5
2008 S550
Since there is no leveling system on the rear (height adjustment electronics on the front only) I would take get all 4 off the ground, relieve the pressure off the culprit cylinder remove the line and plug it with a presure gauge. Let the car down but keep a jackstand on the culprit wheel to hold the weight. Be carefull here! Check the presure in the morning.
