ML 500 (163.175) V8-5.0L (113.965) (2003)
GF83.10-P-2175-01GI Defroster Vent Flap Actuator Motor, Function
GF83.10-P-2175-01GI Defroster Vent Flap Actuator Motor, Function
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with CODE (580a) Automatic air conditioning
Function
Pressing the defroster button on the AAC pushbutton control module actuates the defroster vent flap actuator motor (M2/8) via the air conditioner bus.
The defroster vent flap actuator motor (M2/8) controls the defroster nozzle flaps, which adopt the following positions, according to requirements:
Defrost function
Defroster nozzle flap open 100 %.
System switched off
Defroster nozzle flap open 100 % (This limp-home capability ensures that the windshield will not fog up even when a malfunction has occurred)
Defroster nozzle flap control via the pushbutton control module
(Clock type switch setting of air distribution switch)
NOTE: All actuators are identical.
If a problem exists, it is possible to retrieve and verify the defined end positions by means of the diagnosis assistant system (DAS) (valuation trip).