11 28 050 Replacing A/C compressor drive belt with belt tensioner (N62/N62TU)

NOTE:

For Special Tool identification, see ENGINE- SPECIAL TOOLS - 5-SERIES (E60) .

Special Tools Required:

Necessary Preliminary Tasks:

Remove alternator drive belt. Refer to 11 28 010 REPLACING ALTERNATOR DRIVE BELT (N62/N62TU) .
Remove engine splash guard.

NOTE: If the drive belt is to be reused: Mark direction of travel and reinstall drive belt in same direction of travel.

Pretension belt tensioner slowly and carefully with a Torx socket as far as it will go and secure with special tool 11 3 340.

Remove drive belt.

IMPORTANT: If contaminated with hydraulic fluid: Replace drive belt.

Put on the drive belt.

Remove special tool 11 3 340.

Fig 1: Securing Belt Tensioner Using Locking Pin

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Check that drive belt is correctly positioned on pulleys.

Fig 2: Identifying Correctly Positioned Drive Belt

Courtesy of BMW OF NORTH AMERICA, INC.