Well, I pulled the fans off and gave the condenser a good blowing-out with compressed air. There wasn't a lot of gunk in there and the AC works pretty much the same as before.

I don't know, maybe I'm just being paranoid because of the cost of W140 AC repair.

I did a little more scientific measurement today: With an outside ambient temp of 90-95 *F, and driving at 60+ mph most of the time, it took about 15 minutes to cool all the way down. Once it finally cooled off, the evaporator temp swung between 37 and 41 as the compressor cycled.

Could this be a sign that the evaporator has been changed to an all copper model?

__________________
"It's not about how fast you can go, but how well you can go fast."

Bob in Richmond

'97 S320 (LWB), Ruby Red Metallic, 73k miles
'97 S420V, Smoke Silver Metallic, 155k miles