Install the wiring harness section for sensor system 1

WARNING: 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:
61 00... SAFETY INSTRUCTIONS ON HANDLING HYBRID CARS
For additional information see:
61 25... NOTES ON REPAIR OF HIGH-VOLTAGE BATTERY UNIT

NOTE: TECHNICAL INFORMATION
With the ignition off and the high-voltage safety plug disconnected, the Check Control message "High voltage system faulty" is displayed by default.
The message "High-voltage system switched off" (absence of voltage) is only displayed when the ignition is switched on.

Preliminary work

Refer to REMOVING THE FLAP IN THE RIGHT-HAND LUGGAGE COMPARTMENT TRIM PANEL .
Refer to DE-ENERGIZING THE HIGH-VOLTAGE SYSTEM .
Refer to CHECKING THAT NO VOLTAGE IS APPLIED .
Refer to DISCONNECTING THE NEGATIVE BATTERY CABLE .
Refer to DISCONNECTING THE NEGATIVE BATTERY CABLE OF THE VEHICLE BATTERY .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING DESIGN COVER .
Refer to REMOVING THE RIGHT COVER IN THE ENGINE COMPARTMENT .
Refer to REMOVING THE COVER IN THE LEFT ENGINE COMPARTMENT .
Refer to REMOVING TRAILING LINK AT TENSION STRUT TOWER .
Refer to REMOVING THE SOUND INSULATION ON THE BULKHEAD UPPER PART AT THE CENTER .
Refer to REMOVING CORROSION PROTECTION COVER .
Refer to REMOVING INTAKE SILENCER HOUSING .
Refer to REMOVING CLEAN AIR PIPE .
Refer to REMOVING THE VEHICLE ELECTRICAL SYSTEM SUPPORT BATTERY .
Refer to REMOVING BATTERY HOUSING (ENGINE COMPARTMENT) .
Refer to REMOVE CONTROL UNIT HOLDER .
Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
Refer to REMOVING THE CENTER UNDERBODY PROTECTION .
Refer to REMOVING SIDE UNDERBODY PANELLING .
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 BOTH COOLANT EXPANSION TANKS .
Refer to REMOVING CHARGE AIR LINE .
Refer to REMOVING THE INTAKE PLENUM .
Refer to REMOVING THE HEAT EXCHANGER OF THE AUTOMATIC TRANSMISSION .
Refer to PARTIALLY RELEASING ACOUSTIC COVER OF OIL SUMP .

Remove the left wiring harness section for sensor system 1

Wiring harness section on left 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 pull off the connector of the charging pressure sensor on intake plenum.
Unlock and pull off the connector of the oil-level sensor.
Unlock and pull off the connector of the solenoid valve.
Unlock and pull off the connector of the crankshaft sensor.
Unlock and pull off the connector of the oil pressure switch.
Unlock and pull off the connector of the coolant temperature sensor.

Courtesy of BMW OF NORTH AMERICA, INC.
Unlock the connector of the knock sensors and pull off.
Release the clamps (arrows).
Guide out the wiring harness section for sensor system 1 (1) and place to one side.

Remove the wiring harness section for the sensor system 1 at the front

Wiring harness section for sensor system 1, front

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 pull off the connector for the charging pressure sensor on the charge air line.
Unlock and pull off the connector for the charge-air temperature sensor on the charge air line.
Unlock and pull off the connector of the throttle body.
Unlock and pull off the connector of the heat management module.
Unlock and pull off the electric coolant pump connector.
Feed out the wiring harness section for sensor system 1 (1) and remove.

Courtesy of BMW OF NORTH AMERICA, INC.

Install the wiring harness section for sensor system 1 in front

Wiring harness section for sensor system 1, front

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: RISK OF DAMAGE
Improper routing of cables and wiring harnesses.
Trapped, crushed or damaged cables may cause short circuits and malfunctions.

Route all cables without abrasions, do not trap and crush.

Feed in and install wiring harness section for the sensor system 1 (1).
Connect and lock the connector of the charging pressure sensor on the charge air line.
Connect and lock the connector of the charge-air temperature sensor on the charge air line.
Connect and lock the connector for the throttle body.
Connect and lock the connector for the heat management module.

Courtesy of BMW OF NORTH AMERICA, INC.
Connect and lock the connector of the electric coolant pump.
The connectors must engage audibly.

Install the left wiring harness section for sensor system 1

Wiring harness section on left for sensor system 1

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: RISK OF DAMAGE
Improper routing of cables and wiring harnesses.
Trapped, crushed or damaged cables may cause short circuits and malfunctions.

Route all cables without abrasions, do not trap and crush.

Feed in and install wiring harness section for the sensor system 1 (1).
Secure the clamps (arrows).
Connect and lock the connector for the charging pressure sensor from the intake plenum.
Connect and lock the connector for the oil-level sensor.
Connect and lock the connector for the solenoid valve.
Connect and lock the connector for the crankshaft sensor.

Courtesy of BMW OF NORTH AMERICA, INC.
Connect and lock the connector for the oil pressure switch.
Connect and lock the connector for the coolant temperature sensor.
Connect and lock the connectors for the knock sensors.
The connectors must engage audibly.

Follow-up work

Refer to PARTIALLY REMOVING ACOUSTIC COVER OF OIL SUMP .
Refer to INSTALLING THE HEAT EXCHANGER FOR THE AUTOMATIC TRANSMISSION .
Refer to INSTALLING THE INTAKE PLENUM .
Refer to INSTALLING CHARGE AIR LINE .
Refer to INSTALLING CLEAN AIR PIPE .
Refer to INSTALLING INTAKE SILENCER HOUSING .
Refer to INSTALLING BOTH COOLANT EXPANSION TANKS .
Refer to INSTALL CONTROL UNIT HOLDER .
Refer to INSTALLING BATTERY HOUSING (ENGINE COMPARTMENT) .
Refer to INSTALLING AUXILIARY BATTERY (ENGINE COMPARTMENT) .
Refer to INSTALLING CORROSION PROTECTION COVER .
Refer to INSTALLING SOUND INSULATION AT THE CENTER OF THE BULKHEAD UPPER PART .
Refer to REMOVING/INSTALLING TRAILING LINK AT TENSION STRUT TOWER .
Refer to INSTALLING THE COVER IN THE ENGINE COMPARTMENT ON THE RIGHT .
Refer to INSTALLING THE COVER IN THE ENGINE COMPARTMENT ON THE LEFT .
Refer to INSTALLING ACOUSTIC COVER .
Refer to INSTALLING THE DESIGN COVER .
Refer to CONNECTING THE COOLANT LINE TO THE HIGH-TEMPERATURE COOLANT CIRCUIT .
Refer to CONNECTING THE COOLANT LINE TO THE LOW-TEMPERATURE COOLING SYSTEM .
Refer to CONNECTING NEGATIVE BATTERY CABLE (ENGINE COMPARTMENT) .
Refer to CONNECTING THE NEGATIVE BATTERY CABLE .
Refer to ACTIVATING HIGH-VOLTAGE SYSTEM .
Refer to INSTALLING THE FLAP IN THE RIGHT LUGGAGE COMPARTMENT TRIM PANEL .
Refer to FILLING THE LOW-TEMPERATURE COOLANT CIRCUIT WITH THE VACUUM FILLER DEVICE .
Refer to FILLING THE HIGH-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLER DEVICE .
Refer to BLEEDING THE LOW-TEMPERATURE COOLING SYSTEM .
Refer to BLEEDING THE HIGH-TEMPERATURE COOLANT SYSTEM .
Refer to CHECKING LOW-TEMPERATURE COOLING SYSTEM FOR WATERTIGHTNESS .
Refer to CHECKING THE HIGH-TEMPERATURE COOLING SYSTEM FOR WATERTIGHTNESS .
Refer to INSTALLING THE CENTER UNDERBODY PROTECTION .
Refer to INSTALLING THE FRONT UNDERBODY PROTECTION .
Refer to INSTALLING THE UNDERBODY PANELLING ON THE SIDES .