3-Series (E21, E30)Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.
1987 BMW Convertible 325I R12 to R134A A/C Conversion
Help! I am overwhelmed with information/parts availability for the conversion. Has anyone successfully accomplished it with aftermarket parts -since BMW parts are cost prohibitive? Specific vendors, part numbers, how-to articles, technical bulletions, etc. would be very much appreciated. Thanks!
Son-in-Law did a drop in conversion (the WALMART Special) about six years ago on their '90 325ic and so far so good, if you have no leaks in the system you may wish to try this way cause as George Foreman says "it ain't gonna cost you a lot of money).
I did a conversion on my '88 750il about 8 years ago, but I changed the receiver/dryer, expansion valve, and evaporator as well as all of the "O" rings, was not cheap but I used all aftermarket parts and she is Cold, Cold.
have the old system drained of refrigerant, replace the expansion valve under the dash with one calibrated for r134, replace the reciever drier with one compatible with r134, flush the system and go for it. I am using the standard behr/bosch compressor that came with the car (supposed to not be compatible) but have had no issues this summer and the car blows COLD.
replacing the expansion valve could be considered optional, but replacing the drier is mandatory as the dessicant inside the old one is not compatible with the oil or the refrigerant used in a conversion. Did my whole system for about 120 bucks or so.
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