Well, I'm back from my trip! We drove our little 94 SL2 across Florida this weekend, what a fun drive! Only one thing that sucked, the A/C after 3 hrs of straight driving froze over and stopped blowing air. We had to shut it off for about 30 min. then it worked again.
We had the same thing happen with our 93 SL1 a few yrs ago, bu that car has the old R12 coolant, my 94 SL2 has the newer R134. Doesn't matter if it's hot or cool, raining or not, recirulator open or closed, thermostat high or low, it happened going across west and then back east again, 3 hours and it freezes over. WTF? I would hate to drive this car to Nevada or Arizona. Is this normal? I can find no leaks, the car seems to be perfect in every other way. Thanx.