Installing the left knock sensors

• Clean the contact surfaces of the knock sensors at the cylinder head.
• Position the knock sensors and secure them with the bolts (2)  .
• Tighten the screws (2)  .
  TIGHTENING TORQUES SPECIFICATION
  
  

  Knock sensor to crankcase
  M8x30	tightening torque	21.4 Nm

• Connect connectors (1)  and lock.

  The connectors (1)  must engage audibly.

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Refer to REPLACING THE LEFT AND RIGHT RADIAL SHAFT SEAL RING .
• Refer to INSTALLING THE LEFT ENGINE SUPPORT BRACKET .
• Refer to INSTALLING FRONT AXLE COMPLETELY .
• Refer to TIGHTENING THE BOLTS ON THE FRONT AXLE SUPPORT .
• Refer to SECURING THE SWIVEL BEARING AT THE TOP LEFT AND RIGHT .
• Refer to REMOVING THE MOBILE LIFTING TABLE .
• Refer to ATTACHING COOLANT HOSES TO FRONT AXLE SUPPORT .
• Refer to SECURING THE UNIVERSAL JOINT ON THE STEERING GEAR .
• Refer to ATTACHING THE THERMOSTAT OR TRANSMISSION OIL COOLER LINE ON THE FRONT SUBFRAME .
• Refer to IF INSTALLED: CONNECTING THE CONNECTOR OF THE ACTIVE STABILIZER .
• Refer to IF INSTALLED: SECURING THE LINE FOR THE VERTICAL ACCELERATION SENSOR ON THE RIGHT AND LEFT .
• Refer to ATTACHING THE CABLE OF THE WHEEL RPM SENSOR ON THE LEFT AND RIGHT .
• Refer to SECURING THE FRONT LEFT AND RIGHT BRAKE CALIPER .
• Refer to INSTALLING THE LEFT-HAND AND RIGHT-HAND CRASH LEVER .
• Refer to INSTALLING THE FRONT SECTION OF THE FRONT WHEEL ARCH COVER ON THE LEFT AND RIGHT .
• Refer to INSTALLING THE WHEEL ARCH COVER ON THE FRONT LEFT AND BOTTOM RIGHT .
• Refer to SECURING THE WIRING HARNESS FOR THE EPS ON THE FRONT AXLE SUPPORT .
• Refer to INSTALLING THE OUTPUT SHAFT ON LEFT AND RIGHT .
• Refer to CHECK/ADD FRONT AXLE TRANSMISSION OIL .
• Refer to INSTALLING THE LEFT AND RIGHT SPRING STRUT HOLDER .
• Refer to INSTALLING THE RIGHT REINFORCEMENT STRUT .
• Refer to INSTALLING THE TORSION STRUT LEFT AND RIGHT .
• Refer to REMOVING UNDERBODY PROTECTION AT SIDE RIGHT AND LEFT .
• Refer to INSTALLING THE STIFFENING PLATE .
• Refer to INSTALLING UNDERBODY PROTECTION AT REAR .
• Refer to INSTALLING FRONT STIFFENING PLATE AND/OR UNDERBODY PROTECTION OF THE STEERING GEAR .
• Refer to INSTALLING THE UNDERBODY PROTECTION OF THE STEERING GEAR OR THE FRONT THRUST FIELD .
• Refer to INSTALLING FRONT UNDERBODY PROTECTION .
• Refer to FASTENING THE FRONT LEFT AND RIGHT SPRING STRUT .
• Refer to REMOVING ENGINE BRIDGE .
• Refer to INSTALLING THE CONTROL UNIT BRACKET FOR CYLINDERS 5 TO 8 .
• Refer to INSTALLING THE COVER OF THE LEFT DME CONTROL UNIT .
• Refer to INSTALLING ACOUSTIC COVER .
• 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 CENTER ENGINE COMPARTMENT COVER .
• Refer to TAKING HOOD OUT OF THE SERVICE POSITION .
• Refer to FILLING AND VENTING THE HIGH-TEMPERATURE COOLANT CIRCUIT .
• Refer to CONNECTING ALL BATTERY GROUND LEADS .
• Refer to PLACING THE BRAKE PADS ON THE BRAKE DISK/PUTTING THEM INTO OPERATION .