Removing the engine wiring harness for sensor system 1

NOTE: DANGER
High-voltage system .
The high-voltage system operates on the basis of hazardous, electrical voltage and high currents. Mortal hazard through electric shock!

All work on the high-voltage system may only be carried out by specially trained and technically experienced personnel.
For additional information see:
SAFETY INSTRUCTIONS ON HANDLING HYBRID CARS .
For additional information see:
NOTES ON REPAIR OF HIGH-VOLTAGE BATTERY UNIT .

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 BRINGING FRONT COMPARTMENT LID IN THE SERVICE POSITION .
Refer to REMOVING FLAP IN LUGGAGE COMPARTMENT TRIM PANEL ON RIGHT .
Refer to DE-ENERGIZING THE HIGH-VOLTAGE SYSTEM .
Refer to CHECKING THAT NO VOLTAGE IS APPLIED .
Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING RIGHT SUSPENSION STRUT BRACE .
Refer to REMOVING SUSPENSION STRUT BRACE .
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 REAR HOOD SEAL .
Refer to REMOVING THE COWL COVER .
Refer to REMOVING THE CENTER COWL UPPER PART .
Refer to REMOVING ACOUSTIC COVER AT REAR .
Refer to RELEASING THE HIGH-VOLTAGE CABLES ON THE EME .
Refer to REMOVING INTAKE SILENCER HOUSING .
Refer to REMOVING TANK VENT VALVE .
Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
Refer to REMOVING THE STIFFENING PLATE .
Refer to CONNECTING THE COOLANT LINE OF LOW-TEMPERATURE COOLANT CIRCUIT .
Refer to DRAINING THE COOLANT FROM THE LOW-TEMPERATURE COOLING SYSTEM .
Refer to REMOVING THE THERMOSTAT FROM THE TRANSMISSION OIL LINES .
Refer to REMOVING THE ACOUSTIC COVER OF THE OIL SUMP .
Refer to REMOVING LOW-TEMPERATURE COOLANT EXPANSION TANK .
Refer to REMOVING THE INTAKE PLENUM .
Refer to REMOVING THE ENGINE CONTROL UNIT COVER .

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.

Unlock and disconnect plug connections (1).
Unlock plug connection (2) and disconnect.
Unlock and loosen the cable clip (3).
Loosen the clamp (arrow).
Feed out engine wiring harness (4) of sensor system 1 and set aside.

Courtesy of BMW OF NORTH AMERICA, INC.
Unlock and disconnect plug connections (1).
Loosen the clamp (arrow).
Feed out engine wiring harness (2) of sensor system 1 and set aside.

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 all clamps.

Courtesy of BMW OF NORTH AMERICA, INC.
Release the screws (1) at the rear on the cylinder head.
Unlock lock (2).
Release the wiring harness section (3) from the engine wiring harness for the sensor system 1 and set it aside.

Courtesy of BMW OF NORTH AMERICA, INC.
Release the screws (1) at the rear on the cylinder head.
Feed out engine wiring harness (2) of sensor system 1 and set aside.

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

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

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

Courtesy of BMW OF NORTH AMERICA, INC.