C. Evaporator and Expansion Valve

2 Evaporator pipe
3 Grille
4 condensate drain hose,left
5 Fresh air recirculated air flap
6 Pan
33 2-stage vacuum element
34 Evaporator housing


A 6-row evaporator with 6-point injection and housing is not located in the passenger compartment as before, but in the component compartment between the firewall and the bulkhead. The evaporator housing carries the fresh air/ recirculated air flap (5), as well as the stage vacuum element (33) for the fresh air recirculated air flap.


Aluminum tubes are now used in the evaporator instead of copper tubes (2). As before, the fins are made from aluminum.







Arrangement of expansion valve (35) on evaporator housing


The expansion valve is a block valve familiar from models 123 and 126.







Arrangement of lines on expansion valve


All hose and pipe lines are provided with O-ring fittings. instead of steel, the pipe lines are now made of an aluminum-manganese alloy. The suction and pressure lines are inserted in the corresponding connections of the expansion valve and are fastened to the expansion valve by means of a plate located on the suction line and by a screw or hexagon nut (arrow).