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 Z4, 2004 BMW Z4, and 2003 BMW Z4. 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: Identifying Back Belt Tensioner

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: Identifying Model With Mechanical Drive Belt And Tension Jack

Courtesy of BMW OF NORTH AMERICA, INC.