Installing knock sensor of cylinders 1 to 3

• Clean the contact surface of the knock sensor at the crankcase.
• Insert and install the knock sensor (3)  .
• Tighten down screw (2)  .

Courtesy of BMW OF NORTH AMERICA, INC.

• Connect and lock the connector (1)  .

  The connector (1)  must engage audibly.

Follow-up works 

• Refer to INSTALLING THE ALTERNATOR .
• Refer to INSTALLING THE THROTTLE BODY .
• Refer to CONNECTING THE CHARGE AIR LINE TO THE EXHAUST TURBOCHARGER .
• Refer to INSTALLING THE DRIVE BELT FOR ALTERNATOR .
• Refer to CONNECTING THE NEGATIVE BATTERY CABLE .
• Refer to INSTALLING THE LUGGAGE COMPARTMENT FLOOR COVERING .