Heater duovalve

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mykaitch

Active Member
Joined
Aug 30, 2007
Messages
66
Location
Reading, Berks
Car
2013 C180SE fully loaded
I think mine is sticking. Where is the duovalve/what does it look like ? Is it as easy to do as the window reg ?

I keep getting hot air only - more often that not. When not the air con seems fine. Yesterday left centre vent hot, right cold. Duovalve problem ???:confused:
 
I think mine is sticking. Where is the duovalve/what does it look like ? Is it as easy to do as the window reg ?

I keep getting hot air only - more often that not. When not the air con seems fine. Yesterday left centre vent hot, right cold. Duovalve problem ???:confused:

Have you tried running each side up to full cold / full hot a few times as that "fixed" a friend's car for a while?

If so then the thread is excellent. :)
 

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