11 28 010 Replacing Drive Belt for Alternator (N63)

Special Tools Required:

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 Tasks:

Remove FAN COWL .
Release EXPANSION TANK for Charge Air Cooler From Mounting and Press Forwards.
Coolant Hoses Do Not Need To Be Released!

IMPORTANT: Belt Tensioner Is Under High Initial Spring Preload.

Slowly and Carefully Pre-Tension Belt Tensioner (1) In Direction of Arrow Up To Stop.

Secure Special Tool 11 3 340 In Dowel Hole (2).

Belt Tensioner In Installation Position.

Remove Drive Belt.

NOTE: On Vehicles Which Do Not Have A Power Steering Pump, A Deflecting Element (3) Is Fitted In Place of The Power Steering Pump.

IMPORTANT: Belt Tensioner Is Under High Initial Spring Preload.

Put On The Drive Belt.

Remove Special Tool 11 3 340 From Dowel Hole (2).

Slowly Relieve Tension On Belt Tensioner (1).

Fig 1: Identifying Belt Tensioner, Dowel Hole, and Deflecting Element

Courtesy of BMW OF NORTH AMERICA, INC.

Installation Note:

Make Sure Drive Belt Is In Correct Installation Position.

Fig 2: Identifying Drive Belt Installation Position

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble Engine.