Very old thread revival! But hoping someone can help me out please.

I have an E53 4.8is with front and rear auto levelling air suspension. I’ve done some work to the front end, and had to remove and reinstall the front ride height sensors and had to use DIS to reset an error code (broke a sensor clip and had to drive for a week without it...).

I tried clearing the codes - which didn’t work - so the went into the module and cleared the codes and then set the level sensors to zero - which I think may have been a mistake.... as I’m not sure how the car was actually sitting with auto levelling inactive.

I think I need to recallibrate the ride height - but wanted to check I understand the process properly...

I think I park the car level, measure the front and rear heights and insert those figures into DIS to callibrate the ride height. Then zero the height sensors??

(Has my zeroing the height sensors/resetting zero messed-up what each sensor thinks to be the zero point (particularly where my car may have been artificially too high as self levelling was inactive for a week or so) - and if I simply insert the measured heights into DIS will it auto recalibrate - without me zeroing things again (in which case what’s the zero function about??).

Many thanks if anyone can help!