Removing the engine wiring harness for sensor system 1

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.

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: 11 00 670 SECURING ENGINE IN INSTALLATION POSITION .

WARNING: Working on 12 V electrical system .
Risk of short circuits! Risk of fire!

Make sure that there is no charger connected to the jump start terminal in the engine compartment.
Detach battery ground lead from battery.
For auxiliary batteries: Detach battery minus cables from all auxiliary batteries.

NOTE: RISK OF DAMAGE
Damage to battery terminal, the safety battery terminal or the intelligent battery sensor (IBS) .
Damaged battery terminals can lead to malfunctions or vehicle electrical system faults .

Detach battery terminal from battery pole by carefully shifting to and fro. Do not pry off using a tool.

Preliminary work

Refer to DEACTIVATING ELECTRICAL SYSTEM .
Refer to MOVING THE HOOD TO THE SERVICE POSITION .
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 THE SEAL FOR THE HOOD REAR .
Refer to REMOVING LEFT AND RIGHT WIPER ARM .
Refer to REMOVING WINDSHIELD PANEL COVER .
Refer to REMOVING THE CENTER COWL UPPER PART .
Refer to REMOVING THE LATERAL HOOD SEALS .
Refer to REMOVING THE SIDE PANEL SEAL .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING ACOUSTIC COVER AT REAR .
Refer to REMOVING THE DME CONTROL UNIT .
Refer to REMOVING THE INTEGRATED POWER SUPPLY MODULE (PDM) .
Refer to REMOVING THE CONTROL UNIT HOLDER .
Refer to REMOVING TANK VENT VALVE .
Refer to REMOVING ALL IGNITION COILS .
Refer to REMOVING FUEL DELIVERY LINE .
Refer to REMOVING THE CLEAN AIR PIPE WITH THE RESONATOR .
Refer to REMOVING THE FRONT LEFT AND RIGHT WHEELS .
Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
Refer to REMOVING THRUST FIELD .
Refer to REMOVING THE CENTER UNDERBODY PROTECTION .
Refer to REMOVING REAR UNDERBODY PROTECTION .
Refer to DRAINING THE COOLANT FROM THE LOW-TEMPERATURE COOLING SYSTEM .
Refer to REMOVING THE COVER OF THE STEERING ASSEMBLY ON THE LEFT AND RIGHT .
Refer to REMOVING THE BOTTOM WHEEL ARCH COVER ON THE LEFT AND RIGHT .
Refer to REMOVING THE FRONT SECTION OF THE FRONT WHEEL ARCH COVER .
Refer to REMOVING THE REAR SECTION OF THE FRONT WHEEL ARCH COVER FRONT .
Refer to DETACHING STEERING SHAFT AT BOTTOM FROM STEERING GEAR .
Refer to DETACHING THE WIRING HARNESS OF THE EPS FROM THE FRONT AXLE SUPPORT .
Refer to RELEASING THE LINE CONNECTION TO THE RIDE HEIGHT SENSOR .
Refer to DISCONNECTING THE LEFT AND RIGHT ANTI-ROLL BAR LINK FROM THE ANTI-ROLL BAR .
Refer to PARTIALLY REMOVING THE LEFT AND RIGHT BRAKE VENTILATION DUCT .
Refer to REMOVING THE INTAKE PLENUM .
Refer to MOVE THE ENGINE TO THE INSTALLATION POSITION .
Refer to PREPARING THE SPECIAL TOOL .
Refer to LOWER 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.