Thanks for getting back so soon. My car is a 1986 MB 190E-16v with aftermarket a/c. Can you send the electrical wiring schematic for the a/c system to slk528@yahoo.com. Oh by the way, did all 16v have headers on them or was it just the Euros. Also since Im changing the condensor and recr/dryer and having the car converted to r-134a, should I change the expansion valve too?? I was reading some archived files on a/c and I think that someone had mentioned that should also be done??