Re: 2004 A6 radiator fan keeps running

I think the new sensor is fine.  The behavior is identical now as before
the 
changed sensor.  I noticed today that if I start the car for only 30
seconds 
and then shut it off, the fan still comes on for 10 minutes and then turns

off.  I was also assuming it was the relay but the repeatability of the 
problem and the timing for the eventual shutoff is making me wonder.  I
have 
a call into the mechanic to see what other ideas he has.  Any other
thoughts 
are greatly appreciated...


"TonyJ" <tonyj@[EMAIL PROTECTED]
> wrote in message 
news:13nu9ts91k0okfa@[EMAIL PROTECTED]
>
>
> Steve-public wrote:
>> I have a 2004 Audi A6 2.7t with about 35k miles.  Radiator fan is
running 
>> for 10 - 20 minutes even when the engine is not hot, for example, after
a 
>> 1 or 2 mile drive.  Dealer did not show any diagnostic faults and 
>> recommended replacing the temperature sensor,  Had the local shop
replace 
>> the sensor (dealer wanted over $300) but the situation remains.
>>
>> So the questions are:
>>
>> 1. Is this normal behavior that I just don't notice before?
>> 2. Any other ideas for what to check or replace?
>>
>> Thanks for the help.
>>
>> Steve
>>
>>
> The thermo sensor would have been my guess. If you are sure that the new

> one is good I would suggest sticking relays. If the speed of the fan is 
> the slowest speed it might be related to the AC that causes the fan to
run 
> in the slow speed when the compressor is operating.