12 51 240 Remove and install/replace Module 2, sensor system engine wiring (X3 xDrive 30e PHEV)

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

WARNING: Hot surfaces.
Risk of burning!

Perform all work only on components that have cooled down.

Preliminary work

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 THE NEGATIVE BATTERY CABLE (STARTER UNIT BATTERY) .
Refer to REMOVING BATTERY COVER IN TRUNK .
Refer to DISCONNECTING THE NEGATIVE BATTERY CABLE OF THE SYSTEM BATTERY .
Refer to BRINGING FRONT COMPARTMENT LID IN THE SERVICE POSITION .
Refer to REMOVING THE ACOUSTIC COVER .
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 THE COWL COVER .
Refer to REMOVING THE TENSION STRUT AT THE SHOCK TOWER ON THE LEFT AND RIGHT .
Refer to REMOVING THE BULKHEAD UPPER PART .
Refer to RELEASING THE HIGH-VOLTAGE CABLES ON THE EME .
Refer to REMOVING THE SECOND BULKHEAD AT THE BOTTOM .
Refer to REMOVING ACOUSTIC COVER AT REAR .
Refer to REMOVING RESONATOR .
Refer to REMOVING CHARGE AIR LINE .
Refer to REMOVING THE THROTTLE BODY .
Refer to REMOVING THE ACOUSTIC COVER FOR THE ENGINE AT THE FRONT .
Refer to REMOVING THE DIFFERENTIAL PRESSURE SENSOR .
Refer to REMOVING THE CYLINDER HEAD COVER ACOUSTIC COVER .
Refer to REMOVING THE COVER PANEL OF THE DME CONTROL UNIT .

Follow-up work

Refer to INSTALLING COVER OF THE DME CONTROL UNIT .
Refer to INSTALLING THE CYLINDER HEAD COVER ACOUSTIC COVER .
Refer to INSTALLING DIFFERENTIAL PRESSURE SENSOR .
Refer to INSTALLING ACOUSTIC COVER AT REAR .
Refer to INSTALLING THE THROTTLE BODY .
Refer to INSTALLING THE ACOUSTIC COVER FOR THE ENGINE AT THE FRONT .
Refer to INSTALLING CHARGE AIR LINE .
Refer to INSTALLING RESONATOR .
Refer to SECURING THE HIGH-VOLTAGE CABLES ON THE EME .
Refer to INSTALLING THE SECOND END PANEL UNDERNEATH .
Refer to INSTALLING THE COWL UPPER PART .
Refer to INSTALLING TENSION STRUT ON LEFT AND RIGHT SHOCK TOWER .
Refer to INSTALLING WINDSHIELD PANEL COVER .
Refer to INSTALLING LEFT AND RIGHT WIPER ARM .
Refer to INSTALLING THE REAR RIGHT ENGINE COMPARTMENT COVER .
Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT ON THE REAR LEFT .
Refer to INSTALLING THE FRONT HOOD SEAL AT THE REAR .
Refer to CONNECTING NEGATIVE BATTERY CABLE OF THE SYSTEM BATTERY .
Refer to INSTALLING BATTERY COVER IN TRUNK .
Refer to CONNECTING THE NEGATIVE BATTERY CABLE (12 V BATTERY) .
Refer to ACTIVATING HIGH-VOLTAGE SYSTEM .
Refer to INSTALLING FLAP IN RIGHT LUGGAGE COMPARTMENT TRIM PANEL .
Refer to INSTALLING ACOUSTIC COVER .
Refer to TAKING HOOD OUT OF THE SERVICE POSITION .