1998 a4 30v overheating

[Al S]

Go here: http://www.sjmautotechnik.com/trouble_shooting/cooling.html  scroll 
down to, 2ND AND 3RD SPEED RADIATOR FAN TESTING to see how to test if that 
sensor is faulty. Pull the connector and jumper it to simulate the sensor.
Your connector might be different.
I had the same problem this week on my '90 80. It was the sensor at the 
bottom of the radiator.
Good luck

Al
----- Original Message ----- 
From: "Huw Powell" <audi at humanspeakers.com>
To: "Tony Escobedo" <tonyescobedo at hotmail.com>
Cc: <Quattro at audifans.com>
Sent: Thursday, February 26, 2009 7:02 PM
Subject: Re: 1998 a4 30v overheating


> I'd check out whatever sender tells your fan to turn on - in the cars
> I'm used to, it's usually in the bottom of the radiator.  With any luck,
> from that location you can "fool" the fan into running by simulating
> what the sender does when hot.
>
> I don't know the A4 well enough to really tell you where to undo things
> to test them, but look at wherever the fan motor gets its power, see if
> you can undo it to test the fan with power & ground.
>
> Schematics will be useful in this process.
>
> Tony Escobedo wrote:
>> Hello all,
>>
>> A little frustrated here..  My car overheats and I'd rather it not. I
>> put in a new radiator yesterday cause it blew up the last one. My
>> cars heater when on HI  blows hot only when it wants to and the
>> radiator fan doesn't spin when the car is warm nor when the AC is
>> cranking..  The AC blows cold, but something amiss. Please help!!
>> Anyone been here? Things to look for? Dead fan? Dead relay? Fuse?
>> Thermostat seems intermittent cause of the sometimes heater working..
>> TIA
>>
>> Tony in Miami _______________________________________________ quattro
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>>
>
> -- 
> Huw Powell
>
> http://www.humanspeakers.com/audi
>
> http://www.humanthoughts.org/
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