Hi everyone,
The air conditioning in my 1983 300D has suddenly gotten weak and I want to convert it to the newer R-134 refrigerant. My local Mercedes dealer (Mercedes-Benz of White Plains) wants over a thousand dollars and I really just can't afford that right now. What do you guys think of those do-it-yourself kits? Supposedly all you have to do is let all the old R12 escape, then charge it with one lb. of R-134, add the proper oil, then add three more lbs. of R-134 (so says the guy in the auto parts store). Has anyone done this before? It seems so much cheaper than recharging it with freon. Thanks for the opinions.

Alex

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1983 300D (parked for four years)
2012 VW Sportwagen TDI Manual
2001 Miata SE
1962 Chevrolet Corvair Rampside