11 34 552 Removing and installing or replacing all valves (N16)

Special tools required: 

• 11 4 480

Necessary preliminary tasks: 

• Remove CYLINDER HEAD .
• Remove INTERMEDIATE LEVER .
• Remove ECCENTRIC SHAFT .
• Remove INTAKE CAMSHAFT .
• Remove EXHAUST CAMSHAFT .
• Remove ROLLER CAM FOLLOWER .
• Remove VALVE SPRINGS .
• Remove VALVE STEM SEALS .

Arrangement:

1. Valve
2. Valve stem seal with spring cup, bottom
3. Valve spring
4. Top spring cup
5. Valve keys

If the valves are to be reused, set them down in special tool 11 4 480 in a tidy and orderly fashion.

Fig 1: Exploded View Of Valve Assembly

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check function of Digital Engine Electronics; if necessary, readjust uniform mixture distribution.