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#1
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R12a
Hello Everybody,
This is not related to MBs, but i wanted to know from techs and DIYs. On my 1974 RR silver shadow, it has R12. The AC works but is low on freon and i need to make a decision: 1) Stick to R12 2) change it to R134a 3) change to R12a I am not familar with R12a, has anybody here used it before on any car? How does it work? |
#2
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JC - you will be best served by just finding someone with some r12 that can add what is needed. I have resolved two vehicles a/c issues over the past few days (a 1990 Buick Roadmaster and a 1985 Nissan truck). Both of them just needed a little r12 (approximately 1#) to bring them back to clear the siteglass and make 40dF duct discharge temps. There is nothing like having a working a/c in this part of the country during the month of August. Both owners were tickled pink.
Unfortunately, if they had taken them to an a/c shop they would have tried to sell them a "conversion" for $600+ when all it needed was a little r12. I would stay away from anything but r12.
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Jim |
#3
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do the 12
it will cost more for r12,repair and supply,but you will maintain the r12 comfort you are acustom to. R134 WILL NOT:
1-be Cold in city driving 2-get very Cold during highway driving IT WILL 1-leak thru your hoses 2-make you sorry you converted to R134. of course,if you don't have much of a summer this may not matter to you. here in Fl. i like the almost pain R12 cold gives you when you put your hand on the the ducts.
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72 250 CE-5spd-gone 79 280 CE 82 300TD 83 300 CD 83 380 SEC |
#4
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Stay with R12.
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I got too many cars!! Insurance eats me alive. Dave 78 Corvette Stingray - 3k 82 242 Turbo Volvo - Manual - 270k 86 300e 5 speed manual - 210k 87 420sel - 240k 89 560sl - 78k 91 420sel - 205k 91 560sel - 85k 94 GMC Suburban - 90k 97 Harley Davidson Heritage Softail - 25k 00 GMC Silverado 1 ton 30k |
#5
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Another vote for plain r12.
How much are replacement AC components for a RR? Would you gamble that much $$$ to save $70(perhaps less) on refrigerant? How much would a proper conversion cost compared to $70 worth of refrigerant? Now the r12a would be the worst of all possible choices for so many reasons, but I will not start another 'alternative refrigerant bashing' thread here. r12 prices have dropped to point where a conversion is not really economically viable unless the original system needs extensive repairs. Just don't tell the EPA!
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1986 300E 5-Speed 240k mi. |
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