original SDL expansion valve - R134a?

[surfblau]

I am doing some ac work on my 87 SDL (at wifes request) and after working on it for several minutes, finally got the expansion valve out - what a horrible location.

The expansion valve clearly states R134a on the back. I was hoping that it was original. No country of origin, and it is not clearly marked Englehoff (or whatever) as is my 84 TD.

Is there any chance this is the original expansion valve?

I was hoping I still had r12 in my system so I didn't need to flush the oil out and I was hoping to reuse most of the refrigerant that I recovered...but I am wondering how to tell what kinda of refrigerant that I have.

All the valves are original, no funny adapters are on top of the schraeder valves, nor are there any retrofit stickers that I can see. It looks like the expansion valve and the reciever drier (marked HANSA) were halfway old....Not looking forward to buying more r12 and equipment to flush.

Anyone have advice or thoughts?

alec