Isn't there a check valve in the system? (archive)

I've not looked it up, but it seems there should be a valve that prevents the pressure from leaving the shock, rather than just the shock itself being bad. But of course that (bad internal seal) would do it also. The point is to investigate a little further. Take it to a reliable mechanic (dealer?) for diagnosis. The system runs the power steering too, so I would repair it rather than replace it.
Good luck either way.
Lin Gilbert
1990 750iL

When the car is shut off, the rear suspension after an hour or two sags to the complete down limit. when you turn the car on....the rear end jacks itself to the proper height!? Is this the way this self leveling suspension is suppossed to work? I haven't been able to get the car up in the air to look at the shocks to see if there leaking but ....would this be the cause?

Also....is it an easy process to purchase a self leveling kit and do it your self?

Thanks a bunch to everybody.

Brian

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