AAAARRRRRRRGG. Summer's here, I love it, but my W124 does not. The 88 300CE A/C is simply not doing the job. It was conmverted to R134a last Aug 04 by the previous owner because his compressor went south. He replaced the compressor, receiver/drier, flushed the system, and the work was performed by a reputable A/C shop. I've had the car for about six months now, no problems wharsoever, except for the air. Last week because the temp coming from the center vent into the cabin was only slightly cooler than the outside ambient air, and the aux fan was never coming on with the air running, I brought it to my local A/C guy who has served me very well in the past. He recharged the system, but said not to expect much improvement. The fan does cycle off and on now at the correct pressures from the receiver/drier switch. The car runs at 90 - 100 degrees with or without the A/C on, and the fan has not kicked in because of high sensed temperature. He also said that in his many years of experience, Benz's as a rule do not like to be converted, and that the biggest problem generally was the undersized condensor doing a poor job exchanging the heat from the hotter running R134a vs. R12. He also said that there was an improved condensor available from the dealer which should be installed when converting from R12 the R134a. So may questions are:

1. Is there such a factory condensor, has anybody tried one on a converted w124, and did it help?
2. I know there are aftermarket parallel condensors available; would one of these help? Realize there will be some plumbing alterations necessary, and I should use the biggest condensor I can fit in front of the radiator, but it is worth it?
3. My 190E's are still use R12. My Jeep MJ too. All cool well in the brutal 'Bama heat with no problems. Should I just reconvert back to R12 on my 300CE and restore the system to operate the way it was designed for? Probably be cheaper in the long run. All comments and suggestions from the experts on this great forum are much appreciated. Don

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93 190E Sportline (RIP) (45K)
92 190E (Xferred most Sportline parts to this body)
88 300CE (71K)

And the Jeeps:
01 2WD Cherokee XJ (35K, Mama's grocery/kid hauler)
91 4WD Comanche (300HP stroker)