AIR CONDITIONING – Mercedes-Benz C300 4Matic 2008 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram, with Thermotronic (1 of 3) for Mercedes-Benz C300 4Matic 2008

List of elements for Automatic A/C Wiring Diagram, with Thermotronic (1 of 3) for Mercedes-Benz C300 4Matic 2008:

• (+)
• (-)
• +12v
• 12v
• Ac housing
• Air recirculation mode button
• Automatic air conditioning control & operating unit
• Blower motor
• Blower regulator
• Can b h
• Can b l
• Computer data lines system
• Cp2
• Data
• Data fond
• Evaporator temperature sensor (under right side of dash)
• Front electrical prefuse box (at right rear of engine compt)
• Fuse 100a
• Fuse 40a
• Fuse 7.5a
• Fuse 80a
• Gnd
• Hot at all times
• Hot w/ quiescent current cutout relay energized
• Interior fuse box (behind left end of dash)
• Left front footwell air outlet temperature sensor (behind left side of dash)
• Left side air outlet temperature sensor (behind left side of dash)
• Lin b8
• Ntc
• Rear blower motor
• Rear footwell air outlet temperature sensor
• Rear window heater button
• Red
• Right front footwell air outlet temperature sensor (behind right side of dash)
• Right side air outlet temperature sensor (behind right side of dash)
• Sig
• Sun sensor (top center of dash)
• W15/5 (left front footwell)
• W15/7 (right front footwell)

Automatic A/C Wiring Diagram, with Thermotronic (2 of 3) for Mercedes-Benz C300 4Matic 2008

List of elements for Automatic A/C Wiring Diagram, with Thermotronic (2 of 3) for Mercedes-Benz C300 4Matic 2008:

• (if equipped) rear air outlet symbol illumination
• 12v
• 58d
• Data
• Dew point sensor
• Diffuse flap actuator motor
• Fresh air/ air recirculation flap actuator motor (right side of heater system air circulation unit)
• Gnd
• Left blending air flap actuator (left side of heater system air circulation unit)
• Left center air outlet symbol illumination
• Left center outlet flap actuator motor
• Left defroster vent flap actuator motor (upper left side of heater system air circulation unit)
• Left front side air outlet symbol illumination
• Nca
• Ram air flap actuator motor
• Rear automatic air conditioning operating unit
• Red
• Right blending air flap actuator (right side of heater system air circulation unit)
• Right center air outlet symbol illumination
• Right center outlet flap actuator motor
• Right defroster vent flap actuator motor
• Right footwell flap actuator motor
• Right front side air outlet symbol illumination
• W/ air outlet symbol illumination
• W15/5 (left front footwell)

Automatic A/C Wiring Diagram, with Thermotronic (3 of 3) for Mercedes-Benz C300 4Matic 2008

List of elements for Automatic A/C Wiring Diagram, with Thermotronic (3 of 3) for Mercedes-Benz C300 4Matic 2008:

• (in dash, right of steering column) interior temperature sensor
• (left rear of engine) coolant temperature sensor
• (top center of engine) me-sfi (me) control module
• 12v
• C13d
• C14m
• C17c
• C18m
• C21m
• C3m
• C4i
• C5c
• Combustion engine & a/c w/ integrated control fan motor
• Coolant circulation pump
• Coolant thermostat
• Emissions sensor
• Engine controls system
• Front sam control w/ fuse & relay module (left rear of engine compt)
• Fuse 15a
• Fuse 7.5a
• Gnd
• Hot w/ engine circuit 87 relay energized
• Interior temperature sensor w/ integrated fan
• Kwhs
• Left footwell flap actuator motor
• Lues
• Ntc
• Nwg m2
• Overhead control panel electronics (w/ overhead control panel w/o can)
• Purge control valve
• Rear blend air flap actuator motor
• Red
• Refrigerant compressor
• Refrigerant pressure sensor (at bottom left side of radiator condenser)
• Reg
• Sig
• Solid state
• Tmot
• W15/5 (left front footwell)
• W16/3 (left side of engine compt)
• W16/4 (right side of engine compt)
• W9 (in left front wheelwell)

Automatic A/C Wiring Diagram, without Thermotronic (1 of 2) for Mercedes-Benz C300 4Matic 2008

List of elements for Automatic A/C Wiring Diagram, without Thermotronic (1 of 2) for Mercedes-Benz C300 4Matic 2008:

• (+)
• (left rear of engine) coolant temperature sensor
• (top center of engine) me-sfi (me) control module
• +12v
• 12v
• 30g
• Ac housing
• Air recirculation mode button
• Automatic air conditioning control & operating unit
• Blower motor
• Blower regulator
• Can-b h
• Can-b l
• Combustion engine & a/c with integrated control fan motor
• Computer data lines system
• Cp2
• Data mrm
• Engine controls system
• Evaporator temperature sensor (under right side of dash)
• Front electrical prefuse box (at right rear of engine compt)
• Fuse 100a
• Fuse 40a
• Fuse 80a
• Gnd
• Hot at all times
• Hot w/ quiescent current cutout relay energized
• Kwhs
• Left front footwell air outlet temperature sensor (behind left side of dash)
• Left side air outlet temperature sensor (behind left side of dash)
• Lin b8
• Lues
• Ntc
• Nwg m2
• Purge control valve
• Rear window heater button
• Red
• Reg
• Right front footwell air outlet temperature sensor (behind right side of dash)
• Right side air outlet temperature sensor (behind right side of dash)
• Sig
• Sun sensor (top center of dash)
• Tmot
• W15/5 (left front footwell)
• W15/7 (right front footwell)
• W9 (in left front wheelwell)

Automatic A/C Wiring Diagram, without Thermotronic (2 of 2) for Mercedes-Benz C300 4Matic 2008

List of elements for Automatic A/C Wiring Diagram, without Thermotronic (2 of 2) for Mercedes-Benz C300 4Matic 2008:

• 12v
• Air distribution flap actuator motor (lower left side of heater system air circulation unit)
• C13d
• C14m
• C17c
• C18m
• C21m
• C3m
• C4i
• Coolant thermostat
• Defroster vent flap actuator motor (upper left side of heater system air circulation unit)
• Fresh air/ air recirculation flap actuator motor (right side of heater system air circulation unit)
• Front sam control w/ fuse & relay module (left rear of engine compt)
• Fuse 15a
• Fuse 7.5a
• Gnd
• Hot w/ engine circuit 87 relay energized
• Interior temperature sensor (in dash, right of steering column)
• Interior temperature sensor w/ integrated fan
• Left blending air flap actuator (left side of heater system air circulation unit)
• Left center air outlet symbol illumination
• Left front side air outlet symbol illumination
• Nca
• Ntc
• Overhead control panel electronics (w/ overhead control panel w/o can)
• Rear air outlet symbol illumination
• Red
• Refrigerant compressor
• Refrigerant pressure sensor (at bottom left side of radiator condenser)
• Right blending air flap actuator (right side of heater system air circulation unit)
• Right center air outlet symbol illumination
• Right front side air outlet symbol illumination
• Solid state
• W/ air outlet symbol illumination
• W15/5 (left front footwell)
• W16/3 (left side of engine compt)