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Old 08-12-2002, 09:51 AM
Carrameow Carrameow is offline
Coming back from burnout
Join Date: Jun 1999
Location: in the Pacific Northwest
Posts: 2,274
Gripes over 134 Retrofit Fittings vice Freon 12 Fittings/AC Questions

Is it even necessary to replace the Freon 12 fittings with the New Quick Connect 134 fittings?
I pulled a vacuum for 2 hours and wasted 2 cans of 134 the other day only to discover that my Retrofit 134 Fittings Needle valves weren't making contact with the old R12 Needle valves.
Granted I used Pep Boys Retrofit Valves vice the Mercedes retrofit kit (Does such a kit exist?), but these valves actually worked very well on my other Mercedes.
Then I got wise and just used my old R12 hoses and some fittings and just pumped the 134 using the existing R12 connectors in the System.
1) Does Mercedes make a Retrofit Fitting Kit?

2) What is the System capacity for a Mercedes 85 300D for 134?

3) Should I still replace the Fittings?
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