Quote:
Originally Posted by jbach36
If you have it on the up/down arrow control, so you get air flow to your freezing feet, does the compressor kick on for heat, or does it not engage at a certain temp? I wish MB would have a simple system like the jap cars. Much easier to use....
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The answers to all your questions are in the owners manual. Have you looked?
The compressor is available for operation any non-EC mode, but as a previous poster said it is only used for de-humidification when the heater is in operation. As I recall there is an external temperature point where it won't be used but I don't remember what the specific value was, maybe the mid 30's F?.
As far as being 'easy to use' all I can say is that my HVAC system controls have been set on "normal" (dark lower arrow/lighter upper arrow) with the fan control on "auto" with the temperature wheel on 74F for the last couple of years - and I've never had cold feet or a fogged up window. I've also monitored the cabin temperature with a Fluke thermocouple and my cabin temperature varies between 73-75F.
While I certainly admit that the system can be problematic and hard to fix I don't know how it could be much easier to use - if you have read the owners manual.