GL 450 (164.871) V8-4.6L (273.923) (2007)
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Via the Control Area Network bus, class B (interior compartment) (CAN B):
^
Heated rear window (R1) via rear SAM control module (N10/8)
^
Engine and A/C electric suction fan with integrated control (M4/7) via the central gateway control unit (N93) on the ME control unit N3/10)
^
Recirculated air operation for windows and tilting/sliding roof (left front door control unit (N69/1), right front door control unit (N69/2), front
SAM control unit (N10), rear SAM control unit, and overhead control panel control unit (N70))
Via Local Interconnect Network (LIN):
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Blower regulator (A32n1)
^
Fresh air flap/recirculated air flap actuator motor (M2/5)
^
Left blending air flap actuator (M2/6)
^
Right blending air flap actuator (M2/7)
^
Rear shutoff flap actuator motor (M2/12)
^
Footwell flap actuator motors left and right (M2/15)
^
Defroster vent flap actuator motors left and right (M2/16)
^
Rear air distribution flap actuator motor (M2/21)
^
Center air outlet flap actuator motor (M2/22)
The following sensor signals are read in by the AAC control and operating unit:
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In-car temperature sensor (N22b1)
^
Evaporator temperature sensor (B10/6)
^
Center rear interior temperature sensor (B10/7)
^
Sun sensor (B32)
^
Left side outlet temperature sensor (B10/31)
^
Right side outlet temperature sensor (B10/32)
^
Left center outlet temperature sensor (B10/33)
^
Right center outlet temperature sensor (B10/34)
^
Left footwell temperature sensor (B10/35)
^
Right footwell temperature sensor (B10/36)
^
Outside temperature indicator temperature sensor (B10/5)
^
Refrigerant pressure sensor (B12)
^
Emissions sensor (B31)
Via CAN B:
^
Overhead control panel control unit
-
Rain/light sensor (B38/2)
^
EIS control unit (N73)
-
Circuit status
^
Central gateway control unit and via ME control unit
-
Motor speed
-
Coolant temperature sensor (B11/4)
^
Instrument cluster (A1)
-
Vehicle speed
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C. 58d
^
Left front door control unit, right front door control unit and front SAM control unit
-
Position of side windows
^
Rear SAM control unit
-
Status of rotary tumbler in doors
^
Overhead control panel control unit
-
Position of tilting/sliding roof
Control possibilities
Left temperature selector wheel/right temperature selector wheel
The desired temperature setting for the left and right sides can be set by turning the associated temperature selector wheel.
Air distribution buttons
The air distribution into the individual areas can be controlled by pressing the particular button.
Increase air volume button /Decrease air volume button
The air volume can be selected manually by actuating the appropriate button.
Air volume indicator
