[elky] Re: Sprint in the shop

He's right.  You need the A/C to take the moisture out of the air in order to 
defog the windshield.  Otherwise, you're just throwing moist air at it.  

When the air goes through the evaporator coil, it loses heat, and cannot hold 
as much moisture, so the water condenses into water.  This is the water you see 
dripping from under a car, usually behind the right-front wheel.  Now you have 
dry air that can absorb the moisture that has condensed on the windshield glass.

Very warm air on the windshield will help, and this is what the defogger does 
in non-A/C cars, but working A/C really makes the defog mode work much better.


On Sep 20, 2011, at 8:12 PM, Saul Marsh wrote:

> The mechanic said the windshield defrosting in the winter could be affected 
> if the A/C system gets too dry.  I don't know.

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