Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
Hi, the in car temperature sensor can cause this problem. Check the sensor and see if it is disconnected and see if the suction hose to the sensor is connected. I suspect that you will either find the hose or wiring disconnected or a faulty sensor.
Hello Marty, thank you for the responce, is the part number A0008306108?
That's the part number for the blower for the sensor. I've only replaced 1 or 2 over the years but you should check to be sure there is suction at the in car sensor. The sensor is located in the dome lamp. The part number for the sensor is A1268301472. Usually the sensor harness is disconnected or the air hose is disconnected or not drawing air over the sensor.
Hi Marty, i replaced both the sensor and the blower as well as checked the vacuum line for leaks and the problem is still the same. What else could cause this?
Did you make sure that there is suction at the hose that connects to the sensor? With the a/c on you should be able to place a small piece of tissue on the grille of the sensor and have it stay there. Are you getting voltage to the sensor? If any of the other sensors are disconnected it could also cause the problem. What is the history of the problem? Was any work done on the air conditioning?