E220E Climate Control - Failure of temperature control

[BrianGardiner]

The temperature control is faulty and the settings default to either max. heat or max. cold without any intermediate settings.   Is there a temperature sensor or control card for the system and where is it located?  The pollen filters have been replaced already and the fault seems to be with the sensor, however this is not identified in the maintenance manual available at the club.
Many thanks

 

[Andy]

E220E Climate Control

I think the temp control sensor is in the roof. Where the sunroof switch control panel is. There is a little sensor inside. But you will have to remove this panel to get to it. The panel I mean is the one wear the seat belt sign comes on.

Although I would get it check proffessionally first as the heater duo valve could be playing up giving similar symptons.