Question about 1996 Audi A4

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Overheating I have a 1996 audi a4, and it seems to be overheating now after owning it for about 6 months. When the car is first started, the maunal fan spins normaly (just replaced the fan manual fan clutch), but the secondary electrical fan does NOT seem to run at all. Even when the car gets to the overheat temperature. The only time it comes on is if i turn the AC on... Should the aux fan turn on at the time of engine start? or when it gets to above the 1/2 way mark on the temp guage? Also, the upper radiator hose gets hot while the engine is running, but the lower one seems to stay cool...

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When you mention the radiator having a hot upper in pipe and a cool bottom out pipe tells me that the coolant is not moving around the engine. This could be down to a water pump not working, blocked radiator, thermostat not opening. The bottom hose should be cooler than the top hose but once the engine is up to working temp which is around 85/90 degrees c for an audi the bottom still should be farly hot to touch. Hope this helps

Posted on Jun 01, 2009


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Hello, jiimbos and thank you for asking your question on Fixya!

Here is a simple process that will walk you through a few steps that will pinpoint the overheating problem on your
1998 Audi A4, without even using any tools. It has helped millions of people, and I am certain that it will help you, because I wrote it for people in your exact situation.
How to diagnose your overheating
1998 Audi A4
I would pay close attention to the sender part of the instructions.

Get more great money saving tips and tricks about your vehicle from:

Thanks for the vote, and good luck!

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