Question about 2000 Audi A4
Got no heat, checked all the lines, antifreeze, etc.. think its heater core.
got a little defroster for windshield, works ok but i freeze. want to get a propane heater or something else to keep warm. any ideas on what to do?
To flush the heater core disconnect the two heater hoses under the hood. Use a garden hose to flush out the core by spraying water into one hose connection and water and debri should exit the other opening.
Posted on Nov 04, 2008
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Posted on Jan 02, 2017
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There are little doors under the dash that direct the air to either the vents (blows at your face), the defrost (blows at the windshield), or underneath (blow to your feet area) - these doors are controlled by what's called actuator/s and they are usually controlled by vacuum or cables - when the air won't change directions it can be either the vacuum switch, the vacuum line disconnected, cable disconnected or the actuator itself can be stuck or bad...
You also have a heater valve that allows the heated coolant to enter the passenger compartment into a heater core (small radiator to allow heat to transfer into the air when the blower blows air across the core) - this can also be vacuum controlled or cable controlled or electronically controlled - if it malfunctions then you may not get any heat into the passenger compartment - you will have to determine if the valve is not getting the signal to open or is bad and will not open - good luck :O)
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