12 51 235 Remove and install/replace Module 1, sensor system engine wiring (X4 M40i 2019-2021)
WARNING:
Heavy component falling down or tipping.
Danger! Immobilization period-threatening injuries!
Danger! Immobilization period-threatening injuries!
- Before lowering or removing the front axle: Securing engine to the installation position.
- For additional information see: MOVING THE ENGINE TO THE INSTALLATION POSITION .
WARNING:
Car may slip off the vehicle hoist where components are supported.
Danger! Immobilization period-threatening injuries!
Danger! Immobilization period-threatening injuries!
- Secure the vehicle hoist against lowering and lifting.
- Make sure that the vehicle does not lift off the mounting plates on the vehicle lift.
WARNING:
Vehicle may slip off the vehicle hoist if the vehicle hoist is handled incorrectly.
Danger! Immobilization period-threatening injuries!
Danger! Immobilization period-threatening injuries!
- Observe safety instructions on raising the vehicle using a vehicle hoist.
- For additional information see: RAISING THE VEHICLE WITH A VEHICLE LIFT .
WARNING:
Car may slip off the vehicle hoist if the weight is distributed unevenly.
Danger! Immobilization period-threatening injuries!
Danger! Immobilization period-threatening injuries!
- Ensure specific weight compensation on the vehicle.
Preliminary work
- Refer to DEACTIVATING ELECTRICAL SYSTEM .
- Refer to REMOVING THE SEAL FOR THE HOOD REAR .
- Refer to REMOVING THE ACOUSTIC COVER .
- Refer to MOVING THE HOOD TO THE SERVICE POSITION .
- Refer to REMOVING THE TOP RIGHT AND LEFT COVER IN THE ENGINE COMPARTMENT .
- Refer to REMOVING MOUNT OF HOOD SEAL ON THE LEFT AND RIGHT .
- Refer to REMOVING THE COVER OF THE ENGINE COMPARTMENT AT THE REAR LEFT .
- Refer to REMOVING THE COVER OF THE REAR RIGHT ENGINE COMPARTMENT .
- Refer to REMOVING LEFT AND RIGHT WIPER ARM .
- Refer to REMOVING THE COWL COVER .
- Refer to REMOVING THE FIREWALL UPPER PART .
- Refer to REMOVING ACOUSTIC COVER AT REAR .
- Refer to REMOVING IGNITION COILS .
- Refer to REMOVING FUEL DELIVERY LINE .
- Refer to REMOVING THE DME CONTROL UNIT .
- Refer to REMOVING THE INTEGRATED POWER SUPPLY MODULE (PDM) .
- Refer to REMOVING CONTROL UNIT BRACKET .
- Refer to DETACHING THE CHARGE AIR LINE FROM THE THROTTLE BODY .
- Refer to REMOVING THE FRONT LEFT AND RIGHT WHEELS .
- Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
- Refer to REMOVING THE CENTER UNDERBODY PROTECTION .
- Refer to REMOVING REAR UNDERBODY PROTECTION .
- Refer to INSTALLING THE COVER PANEL FOR THE FRONT AXLE LEFT AND RIGHT .
- Refer to DRAINING THE COOLANT FROM THE LOW-TEMPERATURE COOLING SYSTEM .
- Refer to DRAINING THE COOLANT FOR THE HIGH-TEMPERATURE COOLANT CIRCUIT .
- Refer to REMOVING TRANSMISSION OIL COOLER .
- Refer to REMOVING THE INTAKE PLENUM .
- Refer to BRINGING THE ENGINE TO THE INSTALLATION POSITION .
- Refer to DETACHING STEERING SHAFT AT BOTTOM FROM STEERING GEAR .
- Refer to RELEASING THE EPS WIRING HARNESS FROM THE ELECTROMECHANICAL STEERING GEAR .
- Refer to DETACHING THE LINE CONNECTION OF THE RIDE HEIGHT SENSOR .
- Refer to IF INSTALLED: DISCONNECTING THE VACUUM LINE OF THE ENGINE MOUNTS .
- Refer to RELEASING THE ELECTRIC COOLANT PUMP AND COOLANT HOSES FROM THE FRONT AXLE SUPPORT .
- Refer to DETACHING THE ANTI-ROLL BAR LINK FROM THE ANTI-ROLL BAR ON THE RIGHT AND LEFT .
- Refer to RELEASING THE RIGHT AND LEFT TIE ROD FROM THE SWIVEL BEARING .
- Refer to RELEASING THE LEFT AND RIGHT OUTPUT SHAFT FROM WHEEL BEARING .
- Refer to RELEASING WISHBONE ON RIGHT AND LEFT FROM SWIVEL BEARING .
- Refer to RELEASING THE TENSION STRUTS FROM THE SWIVEL BEARING ON THE LEFT AND RIGHT .
- Refer to REMOVING LEFT AND RIGHT OUTPUT SHAFT .
- Refer to PREPARING THE SPECIAL TOOL .
- Refer to SUPPORTING THE FRONT AXLE SUPPORT .
- Refer to SECURING THE FRONT AXLE SUPPORT AT THE SPECIAL TOOL .
- Refer to RELEASING AND REMOVING FRONT AXLE SUPPORT .
- Refer to DETACHING THE ACOUSTIC COVER FROM THE OIL SUMP .
- Refer to RELEASING FRONT PROP SHAFT FROM FRONT AXLE TRANSMISSION .
- Refer to REMOVING FRONT AXLE DIFFERENTIAL .
Follow-up work
- Refer to INSTALLING FRONT AXLE DIFFERENTIAL .
- Refer to SECURING THE JUNCTURE SHAFT IN FRONT ON THE FRONT AXLE DIFFERENTIAL .
- Refer to FASTENING ACOUSTIC COVER ON THE OIL PAN .
- Refer to REPLACING THE LEFT AND RIGHT RADIAL SHAFT SEAL .
- Refer to INSTALLING THE FRONT AXLE SUPPORT (RAISE) AND FASTEN .
- Refer to INSTALLING OUTPUT SHAFT ON LEFT AND RIGHT .
- Refer to TOPPING UP/CHECKING FRONT AXLE TRANSMISSION OIL .
- Refer to ATTACHING THE RIGHT AND LEFT TENSION STRUTS ON THE SWIVEL BEARING .
- Refer to SECURING THE WISHBONE ON THE LEFT AND RIGHT ON THE SWIVEL BEARING .
- Refer to ATTACHING THE RIGHT AND LEFT OUTPUT SHAFT ONTO THE WHEEL BEARING .
- Refer to SECURING THE TIE ROD TO THE RIGHT AND LEFT ON THE SWIVEL BEARING .
- Refer to SECURING THE ANTI-ROLL BAR LINK ON THE LEFT AND RIGHT ON THE ANTI-ROLL BAR .
- Refer to FASTENING ELECTRIC COOLANT PUMP AND COOLANT HOSES TO THE FRONT AXLE SUPPORT .
- Refer to IF INSTALLED: CONNECTING THE VACUUM LINE OF THE ENGINE MOUNTS .
- Refer to ATTACHING THE LINE CONNECTION OF THE RIDE HEIGHT SENSOR .
- Refer to SECURING THE EPS WIRING HARNESS TO THE ELECTROMECHANICAL STEERING GEAR .
- Refer to SECURING THE STEERING SHAFT AT THE BOTTOM ON THE STEERING GEAR .
- Refer to REMOVING THE COMBUSTION ENGINE FROM THE MOUNTING ORIENTATION .
- Refer to CONNECTING THE COOLANT HOSE TO THE AUXILIARY COOLANT PUMP .
- Refer to CONNECTING THE COOLANT LINE TO THE RADIATOR .
- Refer to INSTALLING THE TRANSMISSION OIL COOLER .
- Refer to INSTALLING THE INTAKE PLENUM .
- Refer to FASTENING CHARGE AIR LINE TO THE THROTTLE BODY .
- Refer to INSTALLING CONTROL UNIT BRACKET .
- Refer to INSTALLING THE INTEGRATED POWER SUPPLY MODULE (PDM) .
- Refer to INSTALLING THE DME CONTROL UNIT .
- Refer to INSTALLING ACOUSTIC COVER AT REAR .
- Refer to INSTALLING FUEL DELIVERY LINE .
- Refer to INSTALLING THE IGNITION COILS .
- Refer to INSTALLING THE COWL UPPER PART .
- Refer to INSTALLING WINDSHIELD PANEL COVER .
- Refer to INSTALLING LEFT AND RIGHT WIPER ARM .
- Refer to INSTALLING THE REAR RIGHT ENGINE COMPARTMENT COVER .
- Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT ON THE REAR LEFT .
- Refer to INSTALLING MOUNT OF HOOD SEAL ON THE LEFT AND RIGHT .
- Refer to INSTALLING THE COVER IN THE ENGINE COMPARTMENT AT TOP LEFT AND RIGHT .
- Refer to ACTIVATING ELECTRICAL SYSTEM .
- Refer to FILLING THE LOW-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
- Refer to FILLING THE HIGH-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
- Refer to VENTING THE LOW-TEMPERATURE COOLING SYSTEM .
- Refer to VENTING THE HIGH-TEMPERATURE COOLANT SYSTEM .
- Refer to CHECKING/TOPPING UP THE OIL LEVEL IN THE AUTOMATIC TRANSMISSION .
- Refer to INSTALLING THE COVER PANELS ON THE FRONT AXLE ON THE RIGHT AND LEFT .
- Refer to INSTALLING UNDERBODY PROTECTION AT REAR .
- Refer to INSTALLING THE CENTER UNDERBODY PROTECTION .
- Refer to INSTALLING FRONT UNDERBODY PROTECTION .
- Refer to INSTALLING THE FRONT LEFT AND RIGHT WHEELS .
- Refer to TAKING HOOD OUT OF THE SERVICE POSITION .
- Refer to INSTALLING ACOUSTIC COVER .
- Refer to INSTALLING THE REAR HOOD SEAL .