I don't really have a lot of experience working with a/c's. But I know I can tackle the project.

Here's the deal....

I just bought an awesome 300td wagon for $1800. The previous owner used one of those wal-mart kits to convert the coolant from the r12 to the new 134 stuff. He says it'll hold a charge for a few months, and then quit. What do you think the problem is? He says the compressor is fine(?) and he just put a new blower in it.

Any ideas??

I live in Texas, and need to get it fixed asap!

Thanks,
Chris

What year??

If it holds a charge for a couple of months, you have a leak. Where a sniffer, or dye will let you know.

The R12 to R134 conversion without flushing the oil out is not good. The R12 oil is not compatable with the R134 oil so neither will stay in suspension and do there job. eventually the compressor will fail due to lack of proper lubrication.

Do a search on R12 to R134 conversion. I did mine (correctly, I am licensed) and went back to R12 due to the lack of cooling with R134. Plenty of info and debate on the R12 to R134 conversion in the W123 body ( if your car is a W123).

Dave

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1970 220D, owned 1980-1990
1980 240D, owned 1990-1992
1982 300TD, owned 1992-1993
1986 300SDL, owned 1993-2004
1999 E300, owned 1999-2003
1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
1988 560SL, 100,000mi, owned since 1995
1965 Mustang Fastback Mileage Unknown(My sons)
1983 240D, 176,000mi (My daughers) owned since 2004
2007 Honda Accord EX-L I4 auto, the new daily driver
1985 300D 264,000mi Son's new daily driver.(sold)
2008 Hyundai Tiberon. Daughters new car

I hear Freeze12 is decent. Havent tried it yet.

__________________
http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42