Hello, got the date code mixed up . the first didget is the year , and the
second diget is the month. A neat way to check for leaks , is to inject a
dye and run the compressor for a few hours. Then sacrifice an old tube sock
and check for leaks.turn the sock inside out, and put it over your hand
like a mitten. rub each connection well and check the sock for the dye.
Difficult to reach connections can be reached this way.If you get no dye on
the sock after all connection have been checked, the leak is probably in
the shaft seal.Look at the underside of the engine hatch. a bad leak will
splatter oil from the compressor all over this.The dye will be there
too.Then the hoses and condenser are suspect.The evaperator is steel as
opposed to aluminum ,as in most vehicles(a vanagon superiority for once). I
think you will look here lastly for any leak.