11 34 715 Replacing all valve springs

Special tools required:

IMPORTANT:

Different valve stem diameters.

Mixing up the valve springs will result in damage to the engine.

Necessary preliminary tasks:

Inlet valves:

Place cylinder head on special tool 11 9 000.

Press valve spring down on spring retainer with special tools 11 0 009 and 11 9 017.

Fig 1: Pressing Valve Spring Down On Spring Retainer With Special Tools (11 0 009) And (11 9 017)

Courtesy of BMW OF NORTH AMERICA, INC.

Exhaust valves:

Place cylinder head on special tool 11 9 000.

Press valve spring down on spring retainer with special tools 11 0 009 and 11 0 346.

Fig 2: Pressing Valve Spring Down On Spring Retainer With Special Tools (11 0 009) And (11 0 346)

Courtesy of BMW OF NORTH AMERICA, INC.

Remove valve tapers with a magnet.

Remove valve spring and spring retainer.

Set down on special tool 11 4 480 in a tidy and orderly fashion.

Fig 3: Removing Valve Spring And Spring Retainer

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT:

Incorrect installation possible.

Incorrect installation will result in valve spring breakage!

Color marking (1) is normally on lower end of valve spring.

Installation note:

Inlet valve: Violet/green or violet/yellow

Exhaust valve: White/green or white/yellow

If the colors on the valve springs can no longer be identified, these must be replaced for safety reasons.

Fig 4: Identifying Valve Spring With Color Marking

Courtesy of BMW OF NORTH AMERICA, INC.

Arrangement:

Valve
Valve stem seal with spring plate, bottom
Valve spring
Top plate spring
Valve tapers

Fig 5: Identifying Valve Components
Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check function of DME.