Question about 2005 Audi A4
Recently had the same problem with my Audi A4, it was the engine thermostat needed replacing, now working fine
Posted on Feb 21, 2010
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Posted on Jan 02, 2017
SOURCE: 96 audi a4 heater blows cold air
Are you sure the thermostat is working efficiently? If your getting a little heat when the car is idleing in traffic, but this goes when you start driving again, it suggests the t'stat is stuck open, therefore no temperature can build. When you flushed the system, could you confirm the flow of water through the heater radiator? Was it passing through easily or just a dribble on the point of exit? is there any heat delivered from any of the other heater settings, e.g floor/screen/face vents? If you can get heat from one of these positions it may suggest a heater box issue. There is of course a slim possiblity that the impeller on the engine water pump may have become loose and ineffective. See how you get on. Good luck
Posted on Jan 17, 2009
sounds like the thermostat is not functioning correctly? either that or not in at all? thus making the water which would normally warm up quickly, warm up extremely slowly and on really cold days not at all? with a 2.6 engine your car shoudl warm up in record time?
Posted on Mar 04, 2009
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