ah haha Air Suspension temp fix
 

e53 4.4 rear of motor is flat to the wheels.
Ive got air suspension inactive.
Replaced pump. Still same. :confused:

Did a trick with some tape, a wire, screw driver, clamp and little bit of time.

Bingo got the back end back up.*forcing it to start* But still have the error code.
I can live with that , As long as air stays in there. Im good.

only 2 weeks messing about to get this working.
:thumbup:

MacGyver would be proud! :)