Replacing drive belt for alternator (S63T2) (X5 M)

Special tools required:

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

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

Necessary preliminary tasks:

Coolant hoses do not need to be released!

Removal:

IMPORTANT: Belt tensioner is under high initial spring tension.

Pretension belt tensioner (1) in direction of arrow.

Insert special tool 11 0 390 in dowel hole of the belt tensioner.

Remove drive belt (2).

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

NOTE: Make sure drive belt is in correct installation position.

Fit timing belts (2).

Pretension belt tensioner (1) in direction of arrow.

Remove special tool 11 0 390 from the dowel hole of the belt tensioner.

Courtesy of BMW OF NORTH AMERICA, INC.

Necessary follow-up tasks: