11 34 715 Replacing all valve springs (N18)

WARNING: This page is about a different car, the 2016 MINI Cooper Paceman, 2015 MINI Cooper Paceman, 2014 MINI Cooper Paceman, and 2013 MINI Cooper. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

Necessary preliminary tasks:

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

Fig 1: Placing Cylinder Head On Special Tool

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Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 2: Identifying Special Tools (11 9 007) And (11 9 006)

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Courtesy of BMW OF NORTH AMERICA, INC.

Align special tool 11 9 006 .

Lock eccentric (1) on special tool 11 9 001 in direction of arrow

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

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Courtesy of BMW OF NORTH AMERICA, INC.

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

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

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Courtesy of BMW OF NORTH AMERICA, INC.

Remove valve keys with a magnet.

Remove valve spring and spring cup.

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

Fig 5: Removing Valve Spring And Spring Retainer

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Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Incorrect assembly possible.
Incorrect assembly will result in valve spring breakage.

Color coding (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

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Courtesy of BMW OF NORTH AMERICA, INC.

Arrangement:

Valve
Valve stem seal with spring cup, bottom
Valve spring
Top spring cup
Valve keys

Fig 7: Exploded View Of Valve Assembly

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Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check function of DME.