HVAC - Hot and Cold air together?
#1
![Question](https://mbworld.org/forums/images/icons/icon5.gif)
Question about the operation of the hvac system in our cars – when running the heater directed to the footwell, do you receive cool air from the center vents? Mine is doing this, and Mercedes service is telling me this is standard operation. It seems illogical to me that it would operate this way.
Car is an '04 C320 4matic.
Can anyone else confirm or deny the proper operation?![nix](https://mbworld.org/forums/images/smilies/nixweiss.gif)
Thanks!
Car is an '04 C320 4matic.
Can anyone else confirm or deny the proper operation?
![nix](https://mbworld.org/forums/images/smilies/nixweiss.gif)
Thanks!
#3
My service rep is stating that MB does not want driver's falling asleep, and hence pushes cold air through the center vents. I think that's a load of deuce.
![bs](https://mbworld.org/forums/images/smilies/bs.gif)
#4
#5
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2012 C300 4Matic
I'll add that to my mental list of absolutely insane BS I've heard from service advisers.
Do you hear any clicking from behind the dash? Your probably have a bad stepper motor linkage. Do a search... you can cycle the HVAC unit to find out if any are bad.
Do you hear any clicking from behind the dash? Your probably have a bad stepper motor linkage. Do a search... you can cycle the HVAC unit to find out if any are bad.