Automatic Climate Control

Y7 Switchover valve unit, 7-times
y1 Switchover valve for fresh/recirculation air flap (small lift*)
y2 Switchover valve for fresh/recirculation air flap (large lift*)
y3 Switchover valve for footwell flaps
y4 Switchover valve for center nozzle flap
y5 Switchover valve for defroster nozzle flaps (large lift*)
y6 Switchover valve for diverter air flap
y7 Switchover valve for defroster nozzle flaps (small lift*)
35 Vacuum connection to intake manifold (to power brake vacuum source on diesels)
36 Check Valve
37 Vaccum Reservoir (except on diesel models)
38 Vacuum element for defroster nozzle flaps
39 Vacuum element for footwell flaps
40 Vacuum element for center nozzle flap
41 Vacuum element for diverter air flap
42 Vacuum element for fresh/recirculation air flap

Color Code:
bl = blue
hbl = light blue
drt = dark red
ge = yellow
mgn = medium green
gr = gray
rt = red
ws = white
sw = black
dgn = dark green

* small lift = short stroke, large lift = long stroke