Date registered: May 2007
Vehicle: 2003 Mercedes Benz E500
Location: San Francisco Bay Area
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Some vehicle manufacturers...
actually produce a full retro-fit kit, including a new evaporator, expansion valve, etc.
I did the conversion on a 240 series Volvo with the above, and it worked reasonably well; however, I somehow doubt the DB has this for a 24 year old car.
I concur with Derek: "So far nothing is as efficient as the old R 12 but I would hope that 64 F can be improved on." You should be talking with an A/C professional to see what can be done.
R-12 is still certainly still available, though pricey, if you are licensed to buy it, which I am; however, your system needs to be in top notch condition... otherwise you will be wasting a good bit of money and sending the R-12 into the atmosphere, which is not a good thing.