Installing the idler pulley

Preliminary work 

• Refer to REMOVING THE FRONT-END STRUT .
• Refer to REMOVING THE LEFT INTAKE FILTER HOUSING (FRONT-END STRUT REMOVED) .
• Refer to REMOVING THE RIGHT INTAKE FILTER HOUSING (FRONT-END STRUT REMOVED) .
• Refer to REMOVING THE CLEAN AIR PIPE FOR CYLINDERS 1 TO 3 .
• Refer to REMOVING SEAL FOR FRONT HOOD .
• Refer to REMOVING THE COVER FOR THE CENTER ENGINE COMPARTMENT .
• Refer to REMOVING UPPER CROSS CONNECTION .
• Refer to REMOVING THE REAR TOP CROSS CONNECTION .
• Refer to REMOVING THE FRONT SPOILER .
• Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
• Refer to REMOVING THE LEFT AND RIGHT FRONT UNDERSHIELD .
• Refer to REMOVING THRUST FIELD .
• Refer to REMOVING THE RIGHT HAND FRONT BOTTOM SIDE COVER .
• Refer to DRAINING THE COOLANT FOR THE HIGH-TEMPERATURE COOLANT CIRCUIT .
• Refer to CONNECTING THE COOLANT LINE TO THE RADIATOR .
• Refer to REMOVING THE FAN COWL .
• Refer to REMOVING THE CHARGE AIR DUCT FOR CYLINDERS 1-3 .
• Refer to REMOVING THE CHARGE AIR DUCT FOR CYLINDERS 4-6 .
• Refer to REMOVING THE CHARGE AIR CROSSING .
• Refer to REMOVING THE DRIVE BELT FOR ALTERNATOR .

• Thread in the idler pulley (2)  and install it.
• Tighten down screw (1)  .

Courtesy of BMW OF NORTH AMERICA, INC.

• Insert and install the protective cap (1)  .

  The protective cap (1)  must engage audibly.

Courtesy of BMW OF NORTH AMERICA, INC.