Hello first, have the following problem: Long highway ride hannover- Netherlands- Mannheim – hannover alles i.o. Innerorts noticed that the rear is completely down…. Hmm On the highway there was nothing to feel no error message or anything else, but now it is without “spring” vehicle is not moved at first. The compressor runs and runs without pause but the rear does not want to get high, after estimated 1 minute ignition from does not want to break any more. What could it be??? leak, how can I find the leak?