11 34 552 Removing and installing/replacing all valves (N52T)

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Special tools required:

11 4 480

Necessary preliminary work:

Remove CYLINDER HEAD .
Remove INTERMEDIATE LEVER
Remove ECCENTRIC SHAFT
Remove INTAKE CAMSHAFT
Remove EXHAUST CAMSHAFT .
Remove ROCKER ARM
Remove VALVE SPRINGS
Remove VALVE STEM SEALS

Arrangement:

Valve
Valve stem seal with lower spring cup
Valve spring
Upper spring cup
Valve keys

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

Fig 1: Identifying Valve Components

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

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