[Es2] No radiator fan= wtf?

Ben Klumper bklumper at mdbworld.com
Wed Oct 13 04:07:24 EDT 2004


On the rad situation, I encountered a similar problem with mine. The fan was
ok, the thermoswitch was ok, the t-stat was ok (new) and everything was ok.
But the car would get up to temp and no fan! It turns out that there was a
ton of air in the system from having been completely apart. I would suggest
having the coolant system vacuum bled and refilled with the proper amount of
coolant. Let us know how you make out!


----- Original Message ----- 
From: <livinotte at cox.net>
To: <Es2 at audifans.com>
Sent: Tuesday, October 12, 2004 11:50 PM
Subject: [Es2] No radiator fan= wtf?

> Hey guys.
> I am having problems with getting the fan to turn on.  I diagnosed it to
this very simple problem.  The thermoswitch in the radiator works.  I
actually heated it up with it connected but not in the radiator and it
turned the fan on.  I ran the car and it gets to 90c and nothing happens.
> My hi 1 speed fan is shot so I have it wired to Hi 2.  If I press ... ( i
forgot which button but on the climate control the fan goes on).
> Here's my hyopothesis on the problem.  I think the thermostat is stuck or
broken.Ibelieve it's not opening at all. I believe this is why I had some
smoke from the turbo. I ran the motor a couple times but now I make sure the
TCP pump goes on and I run the coolant system backwards to go around the
> Is it possible to remove the theromostat without taking the water pump
off?  Seems like it's possible. I have to replace the fan and pull the
radiator so I figured I am going to replace the thermostat too.
> I have never seen directions on pulling the thermostat.  Easy enough?
> Updates:
> I called the place that I ordered the battery box and complained and they
said they would ship it out today. Sapposely it had to be built and then be
> The coupe that I bought has a new fan in it. So I can going to pull it and
put it in the "es2" project.  Ironically this 214,000 thousand mile coupe
has more money put into the "new factory exhaust system" than what I paid
for the whole car.  I find that to be funny.  I took the paper work on the
car with me home, even thought I haven't picked it up yet.  I have to
trailer it home because it's got too many typical coupe quattro issuses.
Funny I sold the crank breather setup to chris and this car's breather is
completely collaped.
> I don't remember but I am hoping the rear tie rods are in nice shape.  If
they are I am going to pull them off and put them on the "es2" project which
means once I figure out the fan issuse I can finally take it for a test
> It's  a bit of a struggle as usual. But one not many people get to enjoy
like I do.
> Cheers
> josh
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