Interesting - I just bought a '92 Jetta with no owner's manual.  I was
concerned because the radiator fan comes on at HIGH speed whenever I turn
the a/c on.  Just adding my two cents here.  But I'm glad to know that the
a/c compressor will kick off if the engine temp gets high enough to need the
high speed on the fan.  Otherwise I'd be freaking out thinking that my a/c
had just blown.  Here in Florida, a/c is a necessity (tho I've been without
it forever - hence, the 'new' Jetta).

Karen Brown
'84 WEsty
'92 Jetta

Mike Miller wrote:

I just picked up the van.  What the shop has done is wire it so that when
the AC FAN, not temp control, is turned on the radiator fan comes on 'high'.
However, they say that if the engine temp goes to the point where the 'high'
fan is kicked on the AC compressor will kick off, as originally designed to
do.