You have two choices: 1.) Find a shop that will do R12; or,
2.) Replace your current condenser with a parallel flow condenser. There is a company that makes them for W123 and W126 chassis cars. I put one in my 350SDL and it was a “portal to the Arctic” when I was done. If you’re planning on owning the car for a while, I would seriously consider going with a parallel flow condenser. R12 is getting harder and harder to find, not to mention more expensive. <https://klimakit.com/product/parallel-flow-condenser-upgrade-kit-w126/> Parallel Flow Condenser Upgrade Kit W126 – Klima Design Works<https://klimakit.com/product/parallel-flow-condenser-upgrade-kit-w126/> klimakit.com<https://klimakit.com/product/parallel-flow-condenser-upgrade-kit-w126/> [klimafavicon.ico.ico]<https://klimakit.com/product/parallel-flow-condenser-upgrade-kit-w126/> -D On Apr 27, 2023, at 3:57 PM, Allan Streib via Mercedes <mercedes@okiebenz.com> wrote: R12 is probably expensive if you can get it and of possibly questionable quality. If it's not leaking, I'd try a R12 substitute. Maybe Freeze12, Autofrost, or Jim Cathey's test blend. If it's leaking, the blended substitutes are not ideal. Because of the different partial pressures of the gasses, they leak at different rates. To recharge and re-establish the proper blend you'll need to fully evacuate the system (ideally fixing the leaks before you do). You can convert to R134a but it's getting expensive too and on the way out. If you do that be sure it's done properly, the old oil flushed out and proper compatible oil used. On Thu, Apr 27, 2023, at 16:59, Andrew Strasfogel via Mercedes wrote: My 300SD W126 has not yet been converted to R134 and the AC does not run ICE COLD. Should I try to hunt down some freon, or convert to R134? Is R12 still available or prohibitively expensive? Andrew 1985 300SD _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
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