Heating-Ventilation

[John S. Lagnese]

Leaky heater core?
----- Original Message ----- 
From: "Max Hoepli" <mhoepli at vif.com>
To: "Quattro at AudiFans" <quattro at audifans.com>; "Urq List" <urq at audifans.com>
Cc: <w-t_audifans at yahoogroups.com>
Sent: Sunday, December 18, 2005 1:39 PM
Subject: Heating-Ventilation


Hello All!

I have a 1986 Audi 5000 Quattro 4 door, the heating works, it becomes hot 
inside car, though the windows can fog, especially in the back, and fogs 
faster when there are more people inside the car. The rear defogger 
functions, when degogger is turned off, the back light will fog, turning the 
defogger on again, the back light will unfog. The windows have been tinted. 
When turned on to "Auto" the vents on the left and right edges of the dash 
will unfog side windows in the front, better that center vents be turned off 
to have more air exiting from the edge vents. At times I am driving with a 
very warm front cabin with temperature showing "HI"  with outside 
temperature of -4C but with foggy windows.
I wonder if the vent like slots behind the rear speakers below the back 
light have any role in this issue of windows fogging. On the outside at the 
bottom of C-pillar, just behind rear quarter window, there is a plastic 
covered section, painted the same as the body, I can peek in behind this 
vent like cover. I wonder if this has any role in the fogging of windows?

Any suggestions to the solution of this fogging?


Max
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