11 34 552 Removing and installing/replacing all valves (N52K)

WARNING: This page is about a different car, the 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove CYLINDER HEAD
Remove INTERMEDIATE LEVER
Remove ECCENTRIC SHAFT
Remove INLET CAMSHAFT
Remove EXHAUST CAMSHAFT
Remove CAM FOLLOWERS
Remove VALVE SPRINGS
Remove VALVE STEM SEALS

Arrangement:

Valve
Valve stem seal with lower spring plate
Valve spring
Upper spring plate
Valve tapers

If the valves are to be reused, they must be placed in neat order in special tool 11 4 480.

Fig 1: Identifying Upper/Lower Spring Plate, Valve Spring And Valve Stem Seal

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check function of DME; if necessary, readjust uniform mixture distribution.