11 31 090 Removing and installing/replacing chain tensioning piston (M52 / M52TU / M54 / M56)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2006 BMW X5, 2006 BMW X3, 2005 BMW X5, 2005 BMW X3, and 2004 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Spring pressure!

Unfasten cylinder for chain tensioning piston.

Fig 1: Unfastening Cylinder For Chain Tensioning Piston

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Replace sealing ring.

Tightening torque 11 31 8AZ. Refer to ENGINE - TIGHTENING TORQUES .

Fig 2: Arrangement Of Components

Courtesy of BMW OF NORTH AMERICA, INC.