[QUOTE=blankpro]
On a hot day, the ac blew high with no cool air. I actually pulled into a gas station, and when I turned the car off and came backa few mis later, the 'problem' was cured.

Check the tension on your serpentine belt.

There's a switch on the back of some compressors that will shut off the system if it senses too loose a belt. Stopping & restarting the car resets the switch and the a/c will reengage until the sensor once again detects the loose belt.

Lots of info on this issue in the archives.

__________________
Mike Murrell
1991 300-SEL - Model 126
M103 - SOHC
"Fräulein"