11 28 010 Replacing drive belt for alternator (N63O1)

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Special tools required:

11 0 390

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

Installation note:

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

Necessary preliminary work:

Remove FAN COWL
Release EXPANSION TANK for charge air cooler from bracket and press forwards

Coolant hoses do not need to be released!

IMPORTANT: Belt tensioner is under high initial spring tension.

Pre-tension belt tensioner (1) in direction of arrow with tool (2).

Insert special tool 11 0 390 in dowel hole.

Remove drive belt.

NOTE: Illustrations shows N63 engine.

Installation note:

Make sure drive belt is in correct installation position.

Fig 1: Identifying Belt Tensioner And Dowel Hole

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.