11 28 010 Removing and installing/replacing drive belt for alternator (M57T2)

WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove fan cowl . See 17 11 035 REMOVING AND INSTALLING/REPLACING FAN COWL WITH ELECTRIC FAN (M57T2) .
Remove air conditioning compressor drive belt . See 11 28 050 REMOVING AND INSTALLING/REPLACING DRIVE BELT (ELASTOBELT) FOR A/C COMPRESSOR (M57TU/M57T2) or 11 28 050 REMOVING AND INSTALLING/REPLACING THE DRIVE BELT (ELASTOBELT) FOR THE AIR CONDITIONING COMPRESSOR (M57T2-SCR) .

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

IMPORTANT: The drive belt must be replaced if it is contaminated with hydraulic fluid.

NOTE: If the drive belt is to be reused, mark direction of travel and reinstall drive belt in same direction of travel.

IMPORTANT: Belt tensioner is under spring pressure.

Press belt tensioner (1) back in direction of arrow.

Remove drive belt (2).

Fig 1: Pressing Belt Tensioner

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.