If you buy a kingbolen ediag elite you will be able to diagnose the fault from the level control system, there is likely a sensor at fault. You can also calibrate the ride height using this device. Measure from the centre of the drive shaft/(axle nut if you aren't from the uk) of each wheel and enter the measurement you record, I found of you add an extra 20mm onto the rear recording makes the car look more level. The final recording simply enter 1 and save and all recordings will be saved. I found mine to be 445mm on the front and 455mm on the rear so entered 475mm on the rear. Hope this helps.
My car’s air suspension cannot keep the car raised and lowers it too much. In fact, the right side lowers even more and almost sits on the tire. This only happens when the car is parked.