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Old 08-23-1999, 01:35 PM
David Hendy's Avatar
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Join Date: Jun 1999
Location: New Milford, Ct
Posts: 1,010
After 4-5 days without being driven, the rear end of my 16V is definitely lower. Once its driven, it rides up again. Both struts are 1-2 years old.

Is it time to replace the air cells? Could there be air in the system?

David Hendy
'87 16V 100K miles

Old 08-23-1999, 01:58 PM
Posts: n/a
I had such a problem with my 560SEC perhaps this can apply to your car. There is a little pump on the engine that can be faulty and the oil goes into the engine... I suggest you to first check the oil level of the shocks and if it goes down, check if there is anything wrong with this pump and if the rear shock baloons aren't leaking...

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A.S.C. 1999

[This message has been edited by Adamou (edited 08-23-1999).]
Old 08-23-1999, 08:06 PM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
The leveling valve isn't holding pressure correctly, But unless you have a load in the rear of the car the system shouldn't need to hold the car up. The system is designed to compensate for loads in the rear of the car. If it's working all of the time the rear springs are sagging. This will cause a lot of expensive problems. Springs are cheap!! & many times spring perch pads can be installed in thicker sizes to bring the ride height back to the correct level.


Old 08-23-1999, 08:47 PM
Posts: n/a
I have a 1986 16 valve that also does the same exact thing. I notice the rear sags even after sitting over night. I always check the leveling fluid level and it doesnt change or drop so fluid leak isnt my question. Both struts are in good shape and the system was recently refilled with fresh fluid and bled by a M-Benz dealer. I think that the bladders may be going since the car rides pretty hard over rough roads. There are no fluid leaks around the stuts or the engine pump. Once I start the car in the morning, the stuts raise to there proper height. It is when the car sits over night that I suspect the system has some type of a fluid pressure loss somewhere.
Thanks, Joe

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