AIR CONDITIONING – BMW 745Li 2004 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram, Basic A/C (1 of 2) for BMW 745Li 2004

List of elements for Automatic A/C Wiring Diagram, Basic A/C (1 of 2) for BMW 745Li 2004:

• (behind center of dash) evaporator temperature sensor
• (right side of dash) fresh air flap actuator
• (under right front seat) x492
• A/c control module
• Auc sens gnd
• Auc sens sig
• Auc sens sply
• Auc sens volt
• Aux water pmp sig
• Blwr mtr bus sig
• Can bus sig
• Cen lock rel sig
• Center lock sig
• Computer data lines system
• Defogger system
• Defroster flap actuator (right side of dash)
• Evaporator sig
• Flap actuator sig
• Front fuse holder (right side of dash)
• Fuse f10 15a
• Fuse f37 40a
• Ground
• Haz warn ind sig
• Haz warning sig
• Hot at all times
• Left cold air flap actuator
• Left heat exchanger temperature sensor
• Left warm air flap actuator
• Lh temp sig
• Lh water vlv sig
• Press sens sig
• Recirculating air flap actuator (center of dash)
• Red
• Refrig ctrl vlv sig
• Refrig sens gnd
• Refrig sens sply
• Rh temp sig
• Rh water vlv sig
• Right footwell flap actuator
• Right heat exchanger temperature sensor
• Sens sys gnd
• Stepper mtr bus sig
• Stepper mtr gnd
• Stepper mtr sply
• Sun blind dn sig
• Sun blind up sig
• Terminal 30 sply
• Ventilation temp sig
• Ventilation temperature sensor unit
• Wip prk htr sig
• X10455
• X10458
• X13742
• X13743
• X1526
• X492 (under right front seat)
• X611

Automatic A/C Wiring Diagram, Basic A/C (2 of 2) for BMW 745Li 2004

List of elements for Automatic A/C Wiring Diagram, Basic A/C (2 of 2) for BMW 745Li 2004:

• (rear window shelf) rear sunblind motor
• (right side of engine compt) refrigerant compressor control valve
• Automatic air recirculation sensor
• Auxiliary water pump
• Blower motor (right side of dash)
• Blower output stage (right side of dash)
• Car access control module
• Characteristic map thermostat
• Computer data lines system
• Coolant pressure sensor
• Dme control module
• Electric fan
• Engine coolant temperature sensor
• Fuse f005 30a
• Fuse f103 80a
• Hot at all times
• Hot w/ dme relay 2 energized
• Jump start terminal point
• Light module (left side of dash)
• Red
• Temperature sensor at radiator outlet
• Water valve assembly (left rear engine compt) 1) left heat exchanger water valve 2) right heat exchanger water valve
• X0167
• X10596
• X166 (right side of engine compt)
• X490 (under right front seat)
• X493 (2002 to 2003 early production) x173 (2003 late production to 2005) (2002 to 2003 early production: left front engine compt) (2003 late production to 2005: below left front seat)
• X493 (left front engine compt)
• X60003
• X60004
• X60093

Automatic A/C Wiring Diagram, High A/C (1 of 2) for BMW 745Li 2004

List of elements for Automatic A/C Wiring Diagram, High A/C (1 of 2) for BMW 745Li 2004:

• (center top of dash) solar sensor
• (rear window shelf) rear sunblind motor
• (under right front seat) x490
• 2002 to 2005 early production
• 2005 late production
• 3) left blower potentiometer 4) right blower potentiometer
• A/c control module
• Auc sens gnd
• Auc sens sig
• Auc sens sply
• Auc sensor (2002 to 2005 early production)
• Auc sensor (2005 late production)
• Aux water pmp sig
• Blower motor (right side of dash)
• Blower output stage (right side of dash)
• Blwr mtr bus sig
• Can bus sig
• Car access control module
• Cen lock rel sig
• Center lock sig
• Computer data lines system
• Condensation gnd
• Condensation sensor
• Condensation sig
• Condensation sply
• Coolant pressure sensor
• Defogger system
• Front fuse holder (right side of dash)
• Fuse f10 15a
• Fuse f37 40a
• Gnd
• Ground
• Haz warn ind sig
• Haz warning sig
• Hot at all times
• Lh pot blower sig
• Lh solar sens sig
• Lh strat pot sig
• Lh water vlv sig
• Light module (left side of dash)
• Press sens sig
• Rear compartment fresh air grill 1) left stratification potentiometer 2) right stratification potentiometer
• Red
• Refrig ctrl vlv sig
• Refrig sens gnd
• Refrig sens sply
• Rh pot blower sig
• Rh solar sens sig
• Rh strat pot sig
• Rh water vlv sig
• Rr compt pot gnd
• Rr compt pot sply
• Solar sens gnd
• Solar sens sply
• Sun blind dn sig
• Sun blind up sig
• Terminal 30 sply
• W/ auc sensor i
• W/ auc sensor ii
• Wip prk htr sig
• X10455
• X10458
• X1526
• X492 (under right front seat)
• X610
• X611

Automatic A/C Wiring Diagram, High A/C (2 of 2) for BMW 745Li 2004

List of elements for Automatic A/C Wiring Diagram, High A/C (2 of 2) for BMW 745Li 2004:

• (left front engine compt) (2002 to 2003 early production) x493 x173 (2003 late production to 2005) (below left front seat)
• (right side of dash) fresh air flap actuator
• A/c control module
• Actuator sig
• Auxiliary water pump
• Characteristic map thermostat
• Computer data lines system
• Control valve (right side of engine compt)
• Defroster flap actuator (right side of dash)
• Dme control module
• Electric fan
• Engine coolant temperature sensor
• Evap temp aft sig
• Evaporator temperature sensor (behind center of dash)
• Fuse f005 30a
• Fuse f103 80a
• Hot at all times
• Hot w/ dme relay 2 energized
• Jump start terminal point
• Left
• Left cold air flap actuator
• Left footwell flap actuator
• Left heat exchanger temperature sensor
• Left rear compartment flap actuator
• Left warm air flap actuator
• Lh heat temp sig
• Lh ventil temp sig
• Recirculating air flap actuator (center of dash)
• Red
• Refrigerant compressor
• Rh heat temp sig
• Rh ventil temp sig
• Right
• Right cold air flap actuator
• Right footwell flap actuator
• Right heat exchanger temperature sensor
• Right rear compartment flap actuator
• Right warm air flap actuator
• Sens system gnd
• Stepper mtr gnd
• Stepper mtr sig
• Stepper mtr sply
• Temperature sensor at radiator outlet
• Ventilation temperature sensor unit
• Water valve assembly (left rear engine compt) 1) right heat exchanger water valve 2) left heat exchanger water valve
• X0167
• X10596
• X13742
• X13743
• X166 (right side of engine compt)
• X493 (left front engine compt)
• X60003
• X60004
• X60093

Cool Box Wiring Diagram, with Rear Compartment Heater & A/C for BMW 745Li 2004

List of elements for Cool Box Wiring Diagram, with Rear Compartment Heater & A/C for BMW 745Li 2004:

• Cooler box
• Fuse f77 5a
• Ground
• Hot at all times
• Interior lights system
• Night design sply
• Rear compartment air conditioning control module
• Rear fuse holder (right rear luggage compt)
• Red
• Refrig box button sig
• Refrig box function led sig
• Ter 30 sply
• X10002
• X1831
• X494 (right rear package self)
• X498 (right rear luggage compt)

Cool Box Wiring Diagram, without Rear Compartment Heater & A/C for BMW 745Li 2004

List of elements for Cool Box Wiring Diagram, without Rear Compartment Heater & A/C for BMW 745Li 2004:

• (behind right rear seat) x13544
• Cooler box
• Fuse f52 15a
• Hot at all times
• Interior lights system
• Light module (left side of dash)
• Power module (right rear luggage compt)
• Rear fuse holder (right rear luggage compt)
• X10004
• X1856

Independent Heating Wiring Diagram for BMW 745Li 2004

List of elements for Independent Heating Wiring Diagram for BMW 745Li 2004:

• (behind left rear seat) x13542
• Auxiliary/ independent heating control module
• Computer data lines system
• Front fuse holder (right side of dash)
• Fuse f1 20a
• Hot at all times
• Independent heater circulation pump
• Independent heater combustion air blower
• Independent heater plug
• Independent heating coolant temperature changeover valve
• Independent heating fuel metering pump
• Nca
• X01011
• X01012
• X01013
• X10454
• X165 (left front engine compt)
• X493 (left front engine compt)
• X642
• X764

Luggage Compartment Fan Wiring Diagram for BMW 745Li 2004

List of elements for Luggage Compartment Fan Wiring Diagram for BMW 745Li 2004:

• Fuse f71 5a
• Hot at all times
• Intercom control module
• Left rear seat heating & head restraint adjustment switch unit
• Luggage compartment fan i
• Luggage compartment fan ii
• Luggage compartment fan relay
• Nca
• Power distribution system
• Power module (right rear luggage compt)
• Rear compartment autarkic telephone
• Rear fuse holder (right rear luggage compt)
• Red
• Right rear seat heating & head restraint adjustment switch unit
• X13094 (left rear luggage compt)
• X179 (right rear luggage compt)
• X1856
• X4844
• X819

Rear Heater & A/C Wiring Diagram for BMW 745Li 2004

List of elements for Rear Heater & A/C Wiring Diagram for BMW 745Li 2004:

• (right rear luggage compt)
• (under right front seat) x492
• A/c system (cooler box circuit)
• Box fun led sig
• Can bus sig
• Computer data lines system
• Front refrigerant shutoff valve
• Fuse f77 5a
• Fuse f83 40a
• Ground
• Hot at all times
• Left rear compartment air conditioning operating unit
• Left rear mixing air flap actuator
• Left rear ventilation flap actuator
• Lh pot blwr sig
• Lh rear a/c gnd
• Lh rear a/c sply
• Lh temp pot sig
• Lh ven temp sig
• Locator lt sply
• Max button sig
• Max led sig
• Nca
• Night design sig
• Night design sply
• Off button sig
• Off led sig
• Pwm loc lt sig
• Rear compartment air conditioning blower motor
• Rear compartment air conditioning blower output stage
• Rear compartment air conditioning control module
• Rear compartment air conditioning left temperature sensor
• Rear compartment air conditioning right temperature sensor
• Rear compartment evaporator temperature sensor
• Rear fuse holder (right rear luggage compt)
• Rear refrigerant shutoff valve
• Red
• Refrig button sig
• Rh ven temp sig
• Right rear mixing air flap actuator
• Right rear ventilation flap actuator
• Sens system gnd
• Shutoff vlv sig
• Stpr mtr bus sig
• Stpr mtr gnd
• Stpr mtr sply
• Temp aft evap sig
• Terminal 30 sply
• X10001
• X10002
• X1830
• X1831
• X494 (right rear package self)
• X498
• X498 (right rear luggage compt)