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Old 07-09-2015, 10:57 AM   #17 (permalink)
UFO
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Quote:
Originally Posted by Daox View Post
I'd imagine they'd have a 'low water' light. If you run out of water, they'd really have to retard timing I would think to avoid knock.

I honestly can't see the A/C system providing that much water, but I could be wrong. Also, that fuel efficiency increase is really going to take a hard hit if you have to use the A/C to refill the water supply.
I'm sure climate control is always on when one drives a BMW. AC is used even in the winter to keep the windows from fogging. Just call it a de-humidifier.
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