Hello, on my R-Class 320 tdi 4Matic, 2006 the rear “air spring bellows” and the compressor were recently renewed. After a short time the car slid off back again. The compressor does not start, my screwdriver thinks it could be the electronics. The relay was changed, but did not adapt to the car – the engine turned, but did not jump on, so old relay was re-used. Has someone done the same or similar experience, or has someone tips to remedy this. ? I would be very grateful and would be happy!