Sorry for the poor posting but I don't know how to do it any other
way.  I posted the message below and the update is when the
airconditioning is turned on it still blows hot air.

Any ideas?
Thanks,
Dermott

Hello,
We have an 01 Jetta with 144k miles, automatic.  Replaced timing belt
and water pump at 83k miles, new accessory belt at 142k miles.
Normally, the temp gauge is at
190 degrees and never budges after it warms up.  It is marked with
hash marks up to the red mark in 17.5 deg increments, the red mark is
at 260 degrees F.
At present, it goes up to 245 degrees at which time I turn the car
off.  This has happened twice.

No coolant leaks, no oil loss, checked underneath and everything
looks
fine.  Checked hoses, connections for leaks - none. When I open the
coolant reservoir, a slight pressure release is heard and the
reservoir fills up to about 3/4 inch more.

At the 245 degree point, the small fan is running and the larger fan
is not.

My presumption is it might be the large fan?

Any way to test which or am I heading in the wrong direction?

Thanks for any help, can't afford a repair shop just now,

Dermott