Removing the engine wiring harness for sensor system 1

WARNING: Heavy component falling down or tipping.
Danger! Immobilization period-threatening injuries!

Before lowering or removing the front axle: Securing engine to the installation position.
For additional information see: SECURING ENGINE IN INSTALLATION POSITION (X4 xDrive30i 2019-2021) , or MOVING THE ENGINE TO THE INSTALLATION POSITION (X4 xDrive30i 2022-) .

WARNING: Car may slip off the vehicle hoist where components are supported.
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!

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!

Ensure specific weight compensation on the vehicle.

Preliminary work

Refer to DEACTIVATING ELECTRICAL SYSTEM .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING RESONATOR .
Refer to REMOVING CLEAN AIR PIPE .
Refer to REMOVING CHARGE AIR LINE .
Refer to REMOVING THE FRONT ACOUSTIC COVER FOR THE ENGINE .
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 SEAL FOR THE HOOD REAR .
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 THE IGNITION COIL .
Refer to REMOVING FUEL DELIVERY LINE .
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 FROM THE HIGH-TEMPERATURE COOLING SYSTEM .
Refer to REMOVING TANK VENT VALVE .
Refer to REMOVING THE DME CONTROL UNIT .
Refer to REMOVING THE INTEGRATED POWER SUPPLY MODULE (PDM) .
Refer to REMOVING CONTROL UNIT BRACKET .
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 ENGINE SUPPORT BRACKETS ON THE LEFT AND RIGHT ENGINE MOUNTS .
Refer to RAISING THE ENGINE WITH THE ENGINE BRIDGE .
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 DETACHING AND LOWERING THE FRONT AXLE SUPPORT .
Refer to REMOVING THE ACOUSTIC COVER OF THE OIL SUMP .

Engine wiring harness for sensor system 1

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: RISK OF DAMAGE
Damage to wires when disconnecting connectors and plug connections.
Sheared wires can cause a short circuit.

Do not pull on wires when disconnecting connectors and plug connections.

Feed out the wiring harness section (1) for sensor system 1 from the bracket (2) and place to one side.

Courtesy of BMW OF NORTH AMERICA, INC.
Unlock and disconnect plug connections (1) .
Unlock and disconnect plug connections (2) .
Unlock plug connection (3) and disconnect.
Unlock plug connection (4) and disconnect.
Loosen the clamp (arrow).
Feed out the wiring harness section (5) for sensor system 1 and place to one side.

Courtesy of BMW OF NORTH AMERICA, INC.
Loosen screws (1) .
Unlock the lock (arrow).
Remove the wiring harness section (2) and put to one side.

Courtesy of BMW OF NORTH AMERICA, INC.
Loosen screws (1) .

Courtesy of BMW OF NORTH AMERICA, INC.
Unlock and disconnect plug connections (1) .
Feed out the wiring harness section (2) for sensor system 1 and place to one side.

Courtesy of BMW OF NORTH AMERICA, INC.
Unlock plug connection (1) and disconnect.
Release the holder (arrows).
Feed out the wiring harness section (2) for sensor system 1 and place to one side.

Courtesy of BMW OF NORTH AMERICA, INC.
Remove the wiring harness section (1) and put to one side.
Loosen screw (2) .
Unlock plug connection (3) and disconnect.

Courtesy of BMW OF NORTH AMERICA, INC.
Feed out the wiring harness section (1) for sensor system 1 and remove.

Courtesy of BMW OF NORTH AMERICA, INC.