Question about 2002 Audi A4

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02 audi a4 1.8t, no heat in car

Timing belt,w/p and termostat were replaced due to engine overheating before this current problem

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Heater core may hav failed-is passenger floor wet-however 1st inspec control panel a vacuum leak in a hose cud be problem especially in engine area caused by the mech workin-unintensional things r common-always chec vehicle post service

Posted on Jan 30, 2010


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When do I replace timing belt on 2008 Audi A4 (2.0) ? Dealer says 75,000 miles Manual says 110,000 miles current milage is 74,400 Thanks for your guidance. Paul Worley

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Ford au 3 overheating going uphill runs fine on the flat so it only cooks when its under power already replaced thermostat

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What is the recommended milage for a timing belt change on a 2004 Audi A6?


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You do not say which engine variant you have in your car but 80,000 is now the general belt interval that is specified.

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Heater does not produce hot air even on high only warm air

My 2002 Audi A4 doesn't produce the hot air, It's an Auto computer control temperature system. I took my car to the local mechanic (gas station), he said that the water pump and the timing belt need to be replaced.

The heating system normally produces by the engine, then normally the "thermostat' is causing the issue, but the temperature gauge doesn't indicate the overheat.

Any idea what's cause this problem?

Oct 04, 2008 | 2002 Audi A4

1 Answer


You must to remove the timing belt to get to the engine thermostat.
The termostat is located behind the timing cover.
Acessing the termostat is not an easy tast, as you have to remove the timing belt to get at it.

If instead you are talking about the radiator fan termic switch, you find it mounted on radiator, where fun wirings get plugged in.


Aug 29, 2008 | 1996 Audi A4

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