11 28 010 Replacing alternator drive belt (S65)

IMPORTANT: Mark the direction of rotation of the drive belt if it is to be reused.
Replace the drive belt if it is fouled with coolant or engine oil.

Necessary preliminary tasks:

Release cover (1) with a screwdriver.

Fig 1: Identifying Drive Belt Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Press down tensioning device (1) with standard tool in direction of arrow.

Remove drive belt.

Installation:

Observe direction of rotation if reusing the drive belt.

Make sure drive belt is installed in correct position.

Fig 2: Pressing Down Tensioning Device With Tool

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.