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1989 300se R12 freon convertion
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07-26-2015, 10:50 AM
Elektri
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Join Date: Jun 2013
Location: PNW
Posts: 242
Best to have a shop do it as the system needs to be flushed of the R12 oil before installing 134a and 134a oil (not compatible). Then all O rings need to be replaced, the pressure switch, accumulator/receiver dryer, and gauge/fill fittings.
Elektri
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