Could be a sensor or control valving problem... I'd bring it in to the dealer as they GT1 tester can communicate with the air suspension control module and read the faults stored as well as activate functions like raising/lowering and read the sensors etc.

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"When you do things right, people won't be sure you've done anything at all" (Bender, futurama)

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X5 pics

RIP 4.6is.....

2003 4.6is