11 34 715 Replacing all valve springs (N14)

Special tools required:

Necessary preliminary tasks:

Place cylinder head (1) on special tool 11 9 000 .

NOTE: Illustration shows N12.

Fig 1: Placing Cylinder Head On Special Tool (11 9 000)

Courtesy of BMW OF NORTH AMERICA, INC.

Prepare special tool 11 9 007 on special tool 11 9 006 .

Fig 2: Preparing Special Tool (11 9 007) On Special Tool (11 9 006)

Courtesy of BMW OF NORTH AMERICA, INC.

Align special tool 11 9 006 .

Lock eccentrics (1) on special tool 11 9 000 in direction of arrow.

Fig 3: Locking Eccentrics On Special Tool (11 9 000)

Courtesy of BMW OF NORTH AMERICA, INC.

Press down valve spring and spring retainer (1) with special tool 11 9 017 .

Fig 4: Pressing Down Valve Spring And Spring Retainer With Special Tool (11 9 017)

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 5: 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.

The larger diameter must point downwards to the valve stem seal.

Fig 6: Identifying Color Marking On Lower End Of Valve Spring

Courtesy of BMW OF NORTH AMERICA, INC.

Arrangement:

Fig 7: Exploded View Of Valve Assembly

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check function of DME.