Hi !Last week we had around -37 C° ( -34 F° ) for several days and the car's air suspension apparently did not cope with this after a few days in this cold temperatures.
This weekend, the warning light inside the car started to light up and the car started to tilt to the right.
I have now had the car inside warm garage for one day to thaw
and after the car had got hot and dried up, I did an error code reading and the error codes below were in the memory.
After deleting all error codes and doing a "Leveling Calibration" according to Ross-Tech description:
the car is still not level,
It's approximately 1" lower both Front and Rear on the Right side.
...now there is only one error code ( 01780 ) that lit up in the memory and in the cluster.
Can anyone help me what is wrong ? 
