Sorry about the delay in reply, been a little bit busy but thanks for the response, appreciated.

I have a 2004 X5 4.8is it has the four wheel height adjustment. The instrument panel reads up with suspension inactive fault message.

I've noticed the front left corner sits high looking at it I'd say height is at it's peak and the front right is high but not high as the left front, due to this (I think) the car is leaning down at the rear but looks to be very even on each of the rear corners.

The error codes read after resting the faults and driving the car around until the suspension inactive came up on the instrument panel by the way this was within 5 miles, using a "Snap-On" diagnostics computer the faults that came up after are;

Anti lock brakes - 5F1E Variant code info (ABS/ASC/DSC) - 5DD7 Height invalid (EHC error air suspension).
Air suspension - 80 Front activity plausibility.
Instrument panel - BD Electronic brake balance (EBV).

Cleared the faults drove a round this time got to about 30 miles before inactive suspension came up on the instrument panel. This time a different diagnostic computer was used "Auto-Boss" and faults list was;

NAME: ABS/ASC/DSC (Dynamic Stability Control)
VALUE: 1 Fault - 5DD7 - EHC Ride-height control, ride heights,invalid.

NAME: EHC Electronic Height Control
VALUE: 1 Fault - 80 - Activity plausibility front right.

NAME: ZKE/GM (Central body electronics/GM base module)
VALUE: 2 Faults -
1 - Fuse or lead for load circuit 1
2 - Fuse or lead for load circuit 2.

NAME: AHL Adaptive directional headlights
VALUE: 1 Fault - 01 - Communication with stepper motor controller 1 disturbed.

NAME: BM/MIR (On-board monitor/Multi Information Radio)
VALUE: 2 Faults -
1 - Control unit reset
3 - PL line:short circuit to ground.

NAME: SMF/SM/SLM (Seat memory,driver
VALUE: 1 Fault - 12 - Steering column,radial:short circuit.

Sorry for the essay, will try the above suggestions and very grateful for any suggestions.

Regards MrQ4.8is.
Mr Q

Mr Q