2002 Audi A4 "hot air blowing heater" Questions

Hot air blows but cools down in 15-20 seconds. My AC works great. Turn on hot air and it blows hot for 15-20 seconds then cools down. I can turn off the system and wait 10 minutes and it will blow hot

heter blows cold air when engine is hot heater blows cold air when engine is hot The thermostat is faulty. Change the thermostat.

...hot air Hi, My heater only blows hot air even if i change the setting to "Lo". When the heater is set to "off", hot air stills comes through and increases the faster the car is going once the engine ...

...air but not hot,please any ideas 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 ...

...air. both hoses for heater core are warm. what you think, main flap is stuck or is something else?? Hello there..Its two things..If your saying that the heater hoses are hot into the car,,either the ...

...hot or cold air. it looks as though my climate control may be going out and only reaches a high temp of 70 would this be a reason why my heater would feel cold since it wont set any higher say for ...

...lies somewhere else. Dual zone systems also have a split door between the heater core and a/c evaporator that often stops functioning properly and it can block the hot air comming from the

...the coolant level dopped so i topped it up and the heaters wouldnt work for the rest of the day. the next day they worked but since then no air hot or cold blows from the vents. is the fan working

...hot air! No hot air only cold, however t-sat seems to be ok since temp gauge reaches 90 (1/2) normally! can someone help me please, i have a 1997 audi a4 2.8l thanks! Hello i have Audi A4 1.8T Year ...

...hot for awhile, then blows cool. Think its airlocked but can't see how to bleed system. take the top off the filler cap run engine to boil. keep it full off water to the top. you will see air ...