Probably a strut valve or a level sensor. Look at the front upper wishbone through the spokes of the alloy to see if the level sensor has popped out of the arm and making the car think it’s set low on that side hence why it’s raised itself up and now can’t understand what level it’s at. If you park the car on a slope and leave it does the front or rear of the car try to level itself slightly? If it does it’s probably a sticking valve located on the strut with the air pipe going into it. Measure the car on each corner from the centre of the wheel to the wheel arch and see if one side is higher than the other. The higher side is probably where to investigate but code checking it with vcds is always a good way to go. ( when measuring the heights the front will always measure a little lower than the rear but really you are looking for a difference across the axel).
Hi guys,
I had the exactly same problem in my Q7. After a lot of searching and googling I found out that the "Residual pressure maintaining valve" in both my rear springs were stuck. By changing the valves the problem was solved.
Valves 50€/each, special tool to open the valves ~20€.