Installing the engine wiring harness for sensor system 1

• Lay the engine wiring harness (1) for the sensor system 1 and attach with clamps.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Route the connector (1) to the DME control unit.
• Install the connector (2) for the integrated power supply module.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Feed in and install the engine wiring harness (2) for sensor system 1.
• Tighten down screws (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Cable bracket on rear cylinder head/transmission
  M6 x 20	tightening torque	8 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Feed in the wiring harness section (2) and position.

  Make sure the lock (arrow) engages audibly.

• Tighten down screws (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Cable bracket on rear cylinder head/transmission
  M6 x 20	tightening torque	8 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Connect the connector (1) to the auxiliary coolant pump and lock it audibly.
• Connect the connector (2) to the boost pressure sensor and lock it audibly.
• Connect the connector (3) to the temperature sensor and lock it audibly.
• Connect the connector (4) to the throttle body and lock it audibly.
• Connect the connector (5) to the knock sensor for the cylinders 1 to 3 and lock it audibly.
• Connect the connector (6) to the heat management module and lock it audibly.
• Connect the connector (7) to the temperature sensor on the cylinder head and lock it.
• Connect the connector (8) to the knock sensor for the cylinders 4 to 6 and lock it audibly.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Connect the connector (1) to the alternator and lock it audibly.
• Connect the connector (2) to the heat management module and lock it audibly.
• Connect the connector (3) to the temperature sensor on the crankcase and lock it audibly.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Variant with rear wheel drive: 

  Connect the connector (1) to the oil pressure sensor and lock it audibly.

  Connect the connector (2) to the crankshaft sensor and lock it audibly.

  Connect the connector (3) to the solenoid valve and lock it audibly.

  Connect the connector (4) to the oil-level sensor and lock it audibly.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Variant with rear wheel drive: 

  Feed in and install the engine wiring harness (2) for sensor system 1.

  Connect connectors (1) and lock.

  The connector (1) must engage audibly.

  Secure the clamps (arrows).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Variant with rear wheel drive: 

  Feed in and install the engine wiring harness (2) for sensor system 1.

  Connect all connectors (1) and lock.

  The connectors (1) must engage audibly.

  Secure the clamps (arrows).

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Refer to INSTALLING THE INTAKE PLENUM .
• Refer to INSTALLING THE TANK VENT VALVE .
• Refer to INSTALLING CONTROL UNIT BRACKET .
• Refer to INSTALLING THE INTEGRATED POWER SUPPLY MODULE (PDM) .
• Refer to INSTALLING THE DME CONTROL UNIT .
• Refer to INSTALLING FAN COWL .
• Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
• Refer to INSTALLING UPPER CROSS CONNECTION .
• Refer to INSTALLING THE RIGHT FRONT-END STRUT .
• Refer to INSTALLING THE FRONT-END STRUT .
• Refer to INSTALLING THE CENTER ENGINE COMPARTMENT COVER .
• Refer to FILLING THE LOW-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
• Refer to CONNECTING ALL BATTERY GROUND LEADS .
• Refer to VENTING THE LOW-TEMPERATURE COOLING SYSTEM .
• Refer to SECURING THE OIL SUMP ACOUSTIC COVER .
• Refer to INSTALLING UNDERBODY PROTECTION AT REAR .
• Refer to INSTALLING THE CENTER UNDERBODY PROTECTION .
• Refer to INSTALLING THE UNDERBODY PROTECTION OF THE STEERING GEAR OR THE FRONT THRUST FIELD .
• Refer to ATTACHING THE FRONT UNDERBODY PROTECTION .
• Refer to INSTALLING ACOUSTIC COVER AT REAR .
• Refer to INSTALLING ACOUSTIC COVER .
• Refer to INSTALLING THE CENTER COWL UPPER PART .
• Refer to INSTALLING TENSION STRUT ON SHOCK TOWER .
• Refer to ATTACHING WINDSHIELD PANEL COVER .
• Refer to INSTALLING LEFT AND RIGHT WIPER ARM .
• Refer to INSTALLING THE REAR HOOD SEAL .
• Refer to INSTALLING THE REAR RIGHT ENGINE COMPARTMENT COVER .
• Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT ON THE REAR LEFT .
• Refer to TAKING HOOD OUT OF THE SERVICE POSITION .