Re: Coolant Fan Stay on

[Igor Kessel <e6941tb@ix.netcom.com>]

MALMQUISTK@aol.com wrote:
> 
> The radiator fan on my 1990 200 TQW will not switch off after the ignition is
> off and the car/coolant temp. is low(<100 deg. F).  I had to disconnect the
> battery to prevent a complete discharge.  This is the first time the fan has
> stayed on so long after shut down.  After looking in the Bentley manual for
> info on the probable failure item, I suspect the control relay in the left
> front kicker or the radiator thermoswitch.  Does anyone have other clues or
> suggestions to cure this  problem.  Please e-mail directly.

Typical. The relay's contacts have welded themselves together in a *closed* position.
There is a TSB, issued by AoA, recommending to replace the existing 40a relay with a 
new style, with a 70a current load capacity.

-- 
Igor Kessel
'89 200TQ - 18psi (TAP)
'97 A4TQ - on the dealer's lot
Philadelphia, PA
USA