pmeatonmobile
New Member
I have removed the glove box and there is a control unit MB part number A2038201642 which is flicking and causing the annoying knocking. At the same time I removed the heater blower motor to investigate a noise from the blades. This was like a parking ticket clicking but on investigation was found to be a sensor, presumably heater input air temp. This was dangling from its wiring in the heater blower blades. It was dislodged from its mount when the car battery was changed by another garage.
Please can someone experiencing the same problem help me to decide is it the heater control unit or the air input temperature sensor that is causing the strange knocking? Both components are expensive, ideally I would change both.
Please can anyone help?
Please can someone experiencing the same problem help me to decide is it the heater control unit or the air input temperature sensor that is causing the strange knocking? Both components are expensive, ideally I would change both.
Please can anyone help?