11 34 552 Removing and installing or replacing all valves (N51)

Special tools required: 

• 11 4 480

Necessary preliminary tasks: 

• Remove Cylinder Head 
• Remove Intermediate Lever 
• Remove Eccentric Shaft 
• Remove intake camshaft 
• Remove Exhaust Camshaft11 31 028 Removing and installing/replacing exhaust camshaft (N52K) 
• Remove Roller Cam Followers 
• Remove Valve Springs 
• Remove Valve Stem Seals 

Arrangement:

1. Valve
2. Valve stem seal with spring plate, bottom
3. Valve spring
4. Top plate spring
5. Valve tapers

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

Fig 1: Valve Spring, Upper Spring Plate, Valve Tapers And Valve

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

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