When I had R-134a, it was acceptable up to about 90F. Try it at 105F, while stuck in traffic. If you are happy with it, that's all that matters.

It is important to note that Dan has an W126 which has a larger condenser, so it can handle R134a better than a W123.
Having said that, his vent temps are impressive!

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Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John

Up, you can get "acceptable" performance with R-134a if everything is perfect, but it's more trouble than its worth compared to running R-12 IMHO.

Also, the '85's condensor has twin tubes running thru the fins making it a bit more efficient than the older single tube condensor.

Other than that I honestly can't say why this one works so well. My 85 SE was marginal with R134 so I installed freeze 12 which cools well.

I was ready to order a PF condensor but had to get it going in the meantime. I'm happy with it so far.

Agree. If it had not been previously converted by the PO and I had R12 available, that's what would be in there.

That's pretty much what I was going to say. I have r134 in my '86, and I haven't been disappointed with it yet. I also haven't seen what it'll do when it gets hot (100's). I don't actually think I have heard any bad things about r134 in w126's yet.

Thinking about that...has anybody tried to put the condenser from a w126 in a w123?

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My Primary Driver - '85 300CD - 4-speed conversion, 2.47 rear, lowered, euro headlights, rebuilding (not restoring so much)

Wife's - '08 Saab Sportcombi Aero

Riding a '03 Yamaha Warrior