On Thu, 15 Feb 2007 00:30:48 +0000 (GMT), "Dave Plowman (News)"
There is a difference between normal AC and climate control systems.
All of the climate control systems in cars I've owned - all the way
back to a 1978 Ford - took complete control of all settings, including
the AC compressor operation, when set in full auto mode.
As others have said, an often overlooked function of any AC system is
a dehumidifier. That function is equally important in house AC
systems, as well as cars.
Hmmm, very curious.
Okay, well I think I know why I have never seen it, and "s" has seen
it everywhere since the ark. He's in the US, I'm in the UK. Given that
American cars tended to have big engines, I guess the manufacturers
weren't really bothered about the extra load of the compressor being
engaged when you went to demist the car, whereas with a little
Euro-box it was deemed the driver should decide if he wants to loose
half the engine power!
The '94 E36 I was referring to did have climate control (all be it the
early 4 knob flavour, not the digital one that came along later), and
the A/C was something extra you decided if you wanted or not, the way
it functioned was more of an add-on than an integrated part of the
system. I know for sure the A/C didn't come on automatically when I
tried to demist the screen because I used to make a point of manually
turning it on. If I forgot, it took ages to clear.
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