Hello, we had in December, right after the inspection a permanent beep from the rear parking sensors. This occurred last year also directly after the inspection. The workshop searched for about half an hour with the finding that any of the 4 parking sensors is defective, but can not be said which one is. At the same time, we were recommended to exchange all 4 sensors, this would cost 500,00 €. Furthermore, we were informed that the closed VolvoPro connectionga After 2 days, the duration of the peeping did not occur after the reverse turn and the parking sensors function again as they should. Today, the awakening came: We were asked to charge about 67€ gross for the fault diagnosis, herein are 16 € net for the reading of the error memory included. As mentioned above, the whole process took less than half an hour and the defective sensor was not found. Do you have to accept such a thing?