S 500 4MATIC (220.184) V8-5.0L (113.966) (2003)
Ignition off
The actuation motors move to the following positions one minute after switching off the ignition:
-
Footwell flaps
0% (without rear air conditioning)
100% (with rear air conditioning)
-
Defroster flaps
0%
-
All other flaps remain in the last set position
Ignition on
The following positions apply for the first 30 seconds after switching on the ignition:
-
Footwell flaps
0% (without rear air conditioning)
100% (with rear air conditioning)
-
Defroster flaps
0%
-
Blend flaps depending on exit temperature of air or manual setting on center vent
-
Diverter flaps automatically depending on air exit temperature or manual setting on center vent
-
Thereafter the automatic flap states for manual settings apply
Exceptions
-
Cold start inhibit: the defroster nozzles must open immediately when the outdoor temperature is < - 5 °C and simultaneously the coolant
temperature < 40 °C when the ignition is switched ON.
-
Unit in A/C mode: footwell must close immediately after switching ignition on
-
Defrost program: logic lock-up, electronic nozzles must open immediately and footwell must close immediately when ignition is switched on.
Mode change to automatic flap operation
Generally there is a so-called mode change-over range for all flaps at the transition from the heating mode to the A/C-mode and vice versa.
Setting deviation < - 4 °C
-
Footwell flaps
0% (without rear air conditioning)
100% (with rear air conditioning)
-
Defroster flaps
40%
-
Blend flaps
0%