Suspension problem
2001 BMW X5 V8 Four Wheel Drive Automatic 81000 miles
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For some reason, the rear air suspension has become fully extended and the back of the car is now sitting at least 6 inches higher than normal, and the ride is so stiff it is unbearable.

I have checked all related fuses and replaced the battery in the hope of getting a quick fix. To no avail...

Why would the suspension fulley extend and how can I get it to return to normal?

Many thanks

Martin

There may be something wrong with the control unit and the only replaceable part is the relay that controls the pump. P/N 61-36-8-373-700. The system is readable for faults with the BMW proprietary software, you may have to seek out someone who has access to it.