AIR CONDITIONING – BMW 640i 2012 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 3) for BMW 640i 2012

List of elements for Automatic A/C Wiring Diagram (1 of 3) for BMW 640i 2012:

• Activation ioniser
• Auc sensor
• Blower motor (under right side of dash)
• Blower output stage (on blower motor)
• Computer data lines system
• Coolant pressure sensor (top of right front wheel)
• Electronics junction box
• Front center ventilation grille
• Fuse 5a
• Fuse 7.5a
• Gnd
• Gnd ioniser
• Heating/air conditioning system (center of dash)
• Hot w/ bistable relay energized
• Hot w/ terminal 15n relay energized
• Interior lights system
• Ioniser
• Junction box (under right side of dash)
• K-can bus sig
• Left adjuster sig
• Left stratification actuator
• Lin bus sig
• Locator lighting
• N2 1b
• Nca
• Red
• Right adjuster sig
• Right stratification actuator
• Sens gnd
• Sig evaporator temp sens
• Sply volt
• Temp sens
• Temp sig
• Z10 11b (right kick panel)
• Z10 3b (right front of engine compt)

Automatic A/C Wiring Diagram (2 of 3) for BMW 640i 2012

List of elements for Automatic A/C Wiring Diagram (2 of 3) for BMW 640i 2012:

• 13b
• A/c compressor
• Auxiliary water pump (left front of engine compt)
• Computer data lines system
• Control valve
• Defroster flap motor (behind left side of dash)
• Driver side heat exchanger water valve
• Electronics junction box
• Evaporator temperature sensor (on a/c evaporator)
• Fresh air flap motor
• Front passenger's heat exchanger water valve
• Fuse 40a
• Fuse 7.5a
• Hot at all times
• Hot w/ terminal 30b relay energized
• Junction box (under right side of dash)
• Left front footwell flap motor
• Left front stratification flap motor
• Left front ventilation temperature sensor
• Left heating heat exchanger temperature sensor
• Left outer ventilation flap motor
• Magnetic clutch
• N2 1b
• Rear fuse holder (in rear power distribution box)
• Recirculated air flap motor
• Red
• Right front footwell flap motor
• Right front stratification flap motor
• Right front ventilation temperature sensor
• Right heating heat exchanger temperature sensor
• Right outer ventilation flap motor
• Water valve assembly (left rear of engine compt)
• X01001
• X13 10b
• X6454 (right rear of engine compt)
• Z10 2b (left front of engine compt)

Automatic A/C Wiring Diagram (3 of 3) for BMW 640i 2012

List of elements for Automatic A/C Wiring Diagram (3 of 3) for BMW 640i 2012:

• Activation
• Bsd bus sig
• Characteristic map thermostat (front of engine)
• Computer data lines system
• Coolant pmp sply
• Digital motor electronics control module (right front of engine compt)
• Ect sens gnd
• Electric coolant pump
• Electric fan (front of engine compt)
• Electric fan cutoff relay (right front of battery compt)
• Engine coolant temperature sensor (on coolant pump housing)
• Fan activation
• Front power distribution box (under right side of dash)
• Fuse 100a
• Fuse 50a
• Fuse 5a
• Fuse 60a
• Fuse box (installed on on battery)
• Hot at all times
• Hot w/ terminal 15n relay energized
• Junction box (under right side of dash)
• Lin bus sig
• Power distribution
• Radiator shutter drive unit
• Red
• Sens gnd
• Sply
• W/ fan 400/600w
• W/ fan 800/1000w
• X148 1b
• X671 1b
• X705 1b
• Z10 15b
• Z10 2b (left front of engine compt)
• Z6000 4b

Independent Heating Wiring Diagram for BMW 640i 2012

List of elements for Independent Heating Wiring Diagram for BMW 640i 2012:

• E85 2b
• Early production
• Electronics junction box
• Fuse 20a
• Hot w/ terminal 30b relay energized
• Independent auxiliary heater (left front wheelwell)
• Independent heater circulation pump (left front wheelwel)
• Independent heater combustion air blower (behind left front wheel)
• Independent heater plug
• Independent heating cooling changeover valve
• Independent heating fuel metering pump
• Junction box (under right side of dash)
• Late production
• Nca
• Rear fuse holder (in rear power distribution box)
• X218 1b
• X218 2b
• Z10 14b (left "c" pillar)
• Z10 2b (left front of engine compt)