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Home >> BMW >> 2009 >> 650i 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 473 (Engine - Repair (M54)) >> V-Ribbed Belt W.Tensioner & Deflect Element >> 11 28 050 Replacing A/C compressor drive belt (M52 / S52 / M52TU / M54 / M56)

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

WARNING: This page is about a different car, the 2002 BMW Z3 and 2001 BMW Z3. 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: 

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
G03178084Courtesy 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.

Fig 2: Pressing Back Drive Belt Tensioner At Hexagon Head Or Torx Socket
G03178085Courtesy of BMW OF NORTH AMERICA, INC.

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.