11 28 050 Replacing A/C compressor drive belt (M52 / S52 / M52TU / M54 / M56)

WARNING: This page is about a different car, the 2005 BMW 530i, 2005 BMW 525i, 2004 BMW 530i, and 2004 BMW 525i. 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.

Necessary preliminary tasks:

If necessary, remove splash guard.

Model with hydraulic drive belt and tension jack:

Remove the dust cab. Push back belt tensioner at bolt connection of guide pulley and remove drive belt.

Fig 1: Pushing Back Belt Tensioner At Bolt Connection Of Guide Pulley And Removing Drive Belt

Courtesy of BMW OF NORTH AMERICA, INC.

Model with mechanical drive belt and tension jack:

Press back drive belt tensioner at hexagon head or Torx socket and remove drive belt.

IMPORTANT: Drive belt must be replaced if fouled with hydraulic fluid.

Installation:

Check drive belt for coolant and oil residues, replace if necessary.

Install drive belt, make sure it is correctly positioned on belt pulleys.

Fig 2: Pressing Back Drive Belt Tensioner At Hexagon Head Or Torx Socket And Removing Drive Belt

Courtesy of BMW OF NORTH AMERICA, INC.