rad fan behavior

[Cade Carvell]

The radiator fan, at least in my 87 4000 Quattro, stays running after
the cars turns off, sometimes for 5 minutes.
It never flickers on then off during warm up.  I don't know enough to
help you diagnose any further, sorry....



Cade Carvell
National Business Systems, Inc.
Eagan, MN 55121
Office: 651-994-4400

>>> George Nimmer <george164 at earthlink.net> 09/30/02 02:20PM >>>
I haven't been able to find any documentation which states the correct
behavior for the radiator fan in an '85 4000s quattro.  Here's what
mine
is doing:

1. Coolant temp is high and radiator fan is running.  I turn off the
engine - radiator fan immediately stops.  Shouldn't it continue to run
until the coolant temp has dropped, even with the engine off?

2. When the car is first warming up in the morning, and coolant
temperature is starting to climb up to normal operating temp, the
radiator fan flicks on and off repeatedly sometimes, until normal
operating temp is reached.

3. The radiator fan is very loud compared to later model cars.  Is
this
normal?  Is there a quieter fan from a late model Audi that will fit
(or
that can be modified to fit) a 4000q?

Thanks all for your input.

George
'85 4000S quattro