Test 14

ACC Manual Function Test 14:

Manual Function Test System Operation

Main Air Flap Opened:

Main Air Flap Position

Air Jet, Blower Cage, Fresh/Recirculate Air Flap Vacuum Element:

Fresh/Recirculating Air Flap Position

Vacuum Function "c" (Heating):

LEGEND
14 = Switchover valve for legroom flaps
15 = Switchover valve for defroster nozzle flaps
17 = Switchover valve for main air flap
18 = Switchover valve for fresh air/recirculating air flap
35 = Vacuum connection to vacuum line from vacuum pump
36 = Check valve
37 = Vacuum reservoir (not used on 123.1)
38 = 2-stage vacuum element for defroster nozzle flaps (flaps "closed", with leak air share)
39 = Vacuum element for legroom flaps (flap "open")
40 = Vacuum element for center nozzle flap (flap "closed")
41 = Vacuum element for fresh air/recirculating air flap (position "fresh air")
42 = Vacuum element for main air flap (flap "open")
48 = 6-point distributor




Color Code
ge = Yellow
gn = Green
gr = Gray
rt = Red
ws = White
hbl = Light Blue
sw = Black