Dear ginko ,
all i whant to ask you is ,can you send me some information from the rear suspention .because when the car is on his level its good , but when i start driving its getting down agian and its killing me to drive the car like that.
but if i dont drive it and leave for 5 days its not getting down.what can i do to let this thing work good mister ginko because im fed up with it .and i cant sell it like that .
and the message and the dashboard to let it go away .
please im realy whant to fix this thing can you help me .
I had a very similar problem, ended up removing the rear suspension rubber air springs , covering them with soapy water and then partly inflating them with a DIY compressor, was easy to see rubber air springs had started to perrish and leak in the 1/2 way down. I was convinced it was not the air springs as often the car would not sag for a day or two.- fitted new air springs ( agents only,as far as i know ) and X5 is 100% Towed a heavy trailer last weekend and perfect. ( i fitted them myself jack the car up and should take you about 3 hours.) good luck
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The X5's and some 5 series models have a compressor in the boot which pump up the rear shock absorbers to level the rear of the vehicle when you load the boot or connect a heavy load on the tow bar, before going down the road of getting an expert to look at it have a look under the vehicle and you will see to black boxes one each near the shock absorbers and check the arm that comes off these two boxes they should both be at the same angle in relation to the black boxes if one is different then its causing the system to be out of alignment.
It may be helpful for you to get some idea of the mechanism involved in operating the shock absorbers in your vehicle. Refer this information. It may then be a matter of finding the parts involved if replacement is required
The cause of your concern could be a faulty Air Susp. Fuse, Rear Susp. air Spring, Air Lines, Air Control Valves or Open/short circuit.
I Suggest you to check the following if you want to check it by your self first;
Check the Fuse located at rear side of truck.
Check both rear the Air Srings for possible cracks especially at lower portion of rubber (folding area)
Using water with soap, check rear both air lines and springs for possible air leak.if possible check it in different hight level. Replace both air springs if found evident of air leak.
Swap Rear and Front Hight level sensor if possible. If the problem transfer to front then replace Sensor.
Check Air control Valve fro possible stuck up, knock it several times gently and observe. If doesn't make change, check power suppy with voltmeter. If you couldn't find the problem then Bring it to BMW Service Center.
It needs to be working to blow air into your back suspention.The pump is under the floor by your door.Its in a drop down box.Check the pump your self or have some one check it for you before you buy a new one.Has i now the swiches infront of the pump fail and so does the micro swiches on the rear suspention arms The Micr swiches activate the pump and are a real problem with the land rover.I would change them firstly.The compressor pump is around $600 new.So check the above before replacing.Good luck phil.
the strut/spring is one assembly that comes out as one unit. The 1989 XJ6s'(USA) had self leveling hydraulic suspension. Is your new strut correct or has your car been retrofitted to conventional shocks?