I ordered the evaporator from local dealership and it shipped from Germany. Beware: this fits a Siemens heater box. Does not fit the Behr heater box. You should be able to see the brand of the heater box without removing the dash.
Modifying a Behr box is possible but after studying the necessary mods, I found a Siemens box in the junkyard, renewed the flap seals and actuators then resealed it. Check your heater core for leaks. Attached is a pic of the part label from MBZ Part # 123 830 14 58.
