Quote:
Originally Posted by first-things-first
When the ATC (automatic temperature control or climate control) gets up to temp, I always thought it worked badly as it would put out quite cold air through the face level air vents. This air was a little too cold for my taste.
The heater bypass - below the two center vents - was set to open (to the right - blue circle) and so was letting a cold air feed (from outside) blend with the current ATC temperature. This was causing the slight draughty cold air. Setting it to the left (bypass closed - white ring) and it shuts off this cold air feed and so is warmer (if set that way in the ATC).
Also, the rear console vents will only supply outside air, chilled by the air conditioning. So, in winter close these off to stop cold draughts.
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The top vents on the drivers side, face level, door and windscreen will be cooler than the passenger side, once the interior has reached its target temp.
I dont know what your issue is, just wishing to be clear, as I have seen others think that it is running cold, but it is a safety function of the atc to reduce drowsiness. Others were ready to pull out the matrix etc thinking the system was faulty when it was functioning correctly. It can get quite cold and draughty after a while. It was a good idea, but not implemented very considerately (in my opinion and experience).
If when this happens, and your foot well vents on both sides are blowing cold too, then you do have a problem. If they are warm, then it is this safety function operating. I dont drive long enough for it to happen much, but if I recall switching out of auto, will then allow the warmth to recommence from the drivers side.
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