Removing the engine wiring harness for sensor system 1

WARNING: Working on 12V 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.

NOTE: TECHNICAL INFORMATION
Additional coolant can leakage. Make sure that no coolant enters the intake port of the cylinder head.

NOTE: TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.

Preliminary work

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 DEACTIVATING THE 48 V ELECTRICAL SYSTEM .
Refer to DEACTIVATING ELECTRICAL SYSTEM .
Refer to REMOVING THE SEAL FOR THE HOOD REAR .
Refer to REMOVING LEFT AND RIGHT WIPER ARM .
Refer to REMOVING THE COWL COVER .
Refer to REMOVING THE FIREWALL UPPER PART .
Refer to REMOVING THE SECOND FIREWALL AT THE BOTTOM .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING ACOUSTIC COVER AT REAR .
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 ALL 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 THE CONTROL UNIT HOLDER .
Refer to REMOVING RIGHT FRONT-END STRUT .
Refer to REMOVING INTAKE SILENCER HOUSING .
Refer to REMOVING RESONATOR .
Refer to REMOVING THE FRONT LEFT AND RIGHT WHEELS .
Refer to INSTALLING THE COVER PANEL FOR THE FRONT AXLE LEFT AND RIGHT .
Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
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 CONNECTING THE COOLANT LINE TO THE AUXILIARY COOLANT PUMP .
Refer to REMOVING TANK VENT VALVE .
Refer to REMOVING THE INTAKE PLENUM .
Refer to MOVE 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 PREPARING THE SPECIAL TOOL .
Refer to SUPPORTING THE FRONT AXLE SUPPORT .
Refer to DETACHING AND LOWERING THE FRONT AXLE SUPPORT .

Engine wiring harness for sensor system 1

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: RISK OF DAMAGE
Electrostatic discharge.
Damage to or destruction of electrical components.

Leave the electrical components in their original packaging until they are being installed. Only use the original packaging for returning the product. Always package removed components straight away.
Read and comply with user information on using the associated special tool 12 7 060.
Only tap the housings of electrical components. Do not tap pins or multi-pin connectors directly.
Wear electrically conductive clothing and antistatic shoes (with ESD symbol).
For additional information see: NOTES ON ESD PROTECTION (ELECTRO STATIC DISCHARGE) .

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.

Loosen nut (1) .
Unlock plug connection (2) and disconnect.

Courtesy of BMW OF NORTH AMERICA, INC.
Loosen clamps (1) .
Thread out positive battery cable (2) and set it aside.

Courtesy of BMW OF NORTH AMERICA, INC.
Undo fir tree clip (1) .

Courtesy of BMW OF NORTH AMERICA, INC.
Detach the expanding rivet (1) from the acoustic cover (2) for the oil pan.

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

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Loosen the expanding rivet (1) .
Detach the acoustic cover (2) for the oil pan and set aside downwards.

Courtesy of BMW OF NORTH AMERICA, INC.
Unlock plug connection (1) and disconnect.
Release the clamps (arrows).
Feed out the engine wiring harness (2) for the sensor system 1 and set it aside.

Courtesy of BMW OF NORTH AMERICA, INC.
Unlock and disconnect plug connections (1) .
Release the clamps (arrows).
Feed out the engine wiring harness (2) for the sensor system 1 and set it aside.

Courtesy of BMW OF NORTH AMERICA, INC.
Loosen screws (1) .
Feed out the engine wiring harness (2) for the sensor system 1 and set it aside.

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.
Unlock and disconnect the plug connections (1) and (2) .
Release the clamps (arrows).

Courtesy of BMW OF NORTH AMERICA, INC.
Loosen clamp (1) .
Loosen clamps (2) .

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Release screws (1) .
Guide out and remove the support (2) for the intake plenum.

Courtesy of BMW OF NORTH AMERICA, INC.
Unlock and disconnect plug connections (1) .
Unlock plug connection (2) and disconnect.
Unlock plug connection (3) and disconnect.
Release the clamps (arrows).

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

Courtesy of BMW OF NORTH AMERICA, INC.