i picked up a 210 for my wife last year and the air did not work compressor had failed and i can buy wholesale MB - so it was still 475 ( i think ) for a re man / or new dont remember anyway

i ended up buying an e bay copy from a guy who had sold a couple of thousand of them all kinds of cars and he had 98 percent positive feedback i paid 249 for it and never looked back

lots of people told me they did not work - it took an hour to install its not a big deal but when you put a new unit in, the receiver dryer should also be changed, reason all the debris from the compressor going bad end up in it and its a filter soooo

R 12 in jersey has come way down from 2 years ago it should not cost over a 200 bucks to have it evaced and re charged if its the 91 car they make a conversion kit for it, it consists of screw on valves so the 134 will adapt a few o rings and oil and than Wal Mart has re charge 134 for like 20 bucks yea its 3 or 4 deg less cooling but jersey its never like Vegas - jz