11 31 052 Replacing both timing chains (M57T2-SCR)

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.

Special tools required:

11 3 340

Necessary preliminary work:

Remove ENGINE
Remove CYLINDER HEAD .
Remove OIL SUMP
Replace crankshaft RADIAL SHAFT SEAL
Remove GEAR CASE

IMPORTANT: Protect alternator against engine oil.
Cover alternator with suitable auxiliary materials.
(Risk of damage).
Assemble charge air hoses without grease and dry.

Lock chain tensioner (1) at bottom with special tool 11 3 340 .

Detach tensioning rail (3).

Detach guide rail (4).

Installation note:

Tightening torque: 13 52 2AZ .

Fig 1: Identifying Tensioning Rail, Guide Rail And Slacken Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.