Converting to current A/C refrigerant
 

I'm tired of adding $100+ of freon every year to my 1980 240D. To convert to the new stuff I have been given quotes of $1200-$1600 by A/C shops. Looks like I can get all the parts necessary for about $400 from Performance (including new compressor).

Where can I get detailed instructions as to what to do? It would also be nice to have a diagram. (I'll be damned if I can find the expansion valve.)

Has anyone done this conversion that can supply some input as to ease, pitfalls, etc.?

Thanks,
Ed

Btw, what does the excact conversion kit consist of?

Fixing the leak means replacing the compressor which comprises 75% of the cost of the parts needed for conversion.

Conversion parts include:

Compressor ($288.00)
Receiver dryer
Expansion valve
Pressure switch

If it is the old style york compressor ( up top on left) dont bother it wont cool. Now if you have an r4 ( bottom right) you will be ok. Make sure to add pag oil only to the compressor and change reciever drier. Use a 15-20% less charge of 134a than it takes r12. When doing a conversion we usually change e-valve and condensor if the car has experienced a black death ( compressor lock up) . Good luck :D

WHY DON'T YOU JUST HAVE THE LEAK FIXED?