Question about 1996 Audi A4
I have a 1996 Audi A4 V6 And it has a poor excuse for heat. Defrost is warm and gets the car luke warm, the fan works on all speeds, all options, the control unit shows no errors on the diagnostics, the car also runs at perfect temp not cold or hot, Ive checked the heater core hoses coming out of the firewall they are warm like the other water lines too and from. Help this is rather annoying lol
Check the mechanism that controls the heat flow .The flap may not be opening fully thereby ,impeding the full flow of heat into the cabin. .
Posted on Jan 03, 2014
I'd Say you have a blocked heater core - not uncommon on these models.
Potentially the mixing flaps within the HVAC box aren't functioning correctly, but you say the system makes no strange noises and isn't throwing codes...
Unfortunately, heater core replacement is a dash-out job. Not the end of the world, but a bit pricey.
Posted on May 04, 2014
Check to see if there is a cable or vacuum operated valve in the heater hose that may not be opening or closing all the way operate the valve manually to see if it works smoothly. Also check to see that the outside air intake vent is closed.Hope this helps
Posted on Jan 03, 2014
Testimonial: "outside air vent is wide open, also the filter was quite dirty. is this door suppose to be shut? Jan 10, 2014"
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Posted on Jan 02, 2017
there is a valvve that lets the coolant thru the heater core when heat is selcted then when it is off it goes thru thur the return instead of the heater core i bet your car is running a little off if it is the vavle works of a vacuum line and the vavle has a crack in it
Posted on Dec 10, 2008
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