11 28 010 Replacing alternator drive belt (M62)

WARNING: This page is about a different car, the 2003 BMW X5 and 2002 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If the drive belt is to be subsequently reused:

Mark direction of travel and reinstall drive belt in same direction of travel.

Remove fan clutch with impeller,

refer to 11 52 020 REMOVING AND INSTALLING OR REPLACING FAN COUPLING (M62) .

Layout of drive belt.

Fig 1: Layout Of Drive Belts

Courtesy of BMW OF NORTH AMERICA, INC.

Slacken screws (1) and relieve tension on belt drive.

Fig 2: Identifying Complete Belt Tensioner Removing Screws

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NOTE: Release screws (1 and 2) to remove complete belt tensioner.

Remove drive belt.

CAUTION: You must replace the drive belt if it is contaminated with hydraulic fluid.

Installation:

Check drive belt for coolant and oil residue and replace if necessary.

Installation:

Mount drive belt and check that it is correctly positioned on belt pulleys.

Pretension adjustable plate at hexagon head (1) up to end of elongated hole (2) and tighten down screws (3).

CAUTION: Screws (3) up to 9/98

M8 strength class 8.8 tightening torque 22 Nm.

Screws (3) from 9/98 with liquid-cooled alternator

M8 strength class 10.9 tightening torque 30 Nm.

Fig 3: Installing Belt Tensioner

Courtesy of BMW OF NORTH AMERICA, INC.