11 34 715 Replacing all valve springs (S65)

WARNING: This page is about a different car, the 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 5 281
11 5 282
11 5 821
11 9 001
11 9 006
11 9 008
11 9 009
11 9 950
11 9 951
11 9 953

See ENGINE - SPECIAL TOOLS .

IMPORTANT: Risk of damage to cylinder head.
Use only the approved special tools.
Plastic rings on the special tools must not be damaged.
Special tools 11 5 821 and 11 5 282 must be modified to special tool 11 9 950 .

Necessary preliminary tasks:

Remove cylinder head. See left and right .
Remove all HVCA elements.

NOTE: Place cylinder head (1) with cylinder head bolts on special tool 11 9 001 .

Prepare special tool 11 9 006 with special tool 11 9 008 .

NOTE: Picture shows S85.

Fig 1: Identifying Cylinder Head, Special Tools (11 9 001) And (11 9 006)

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Insert aluminum profile rail (1) and align.

Secure eccentric clamping levers (2 and 3) in direction of arrow.

Fig 2: Inserting Aluminum Profile Rail

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IMPORTANT: Special tools S85 11 5 281 and 11 5 282 must be modified to S65 11 9 950 .

Special tool 11 5 281 for removing valve keys.

Special tool 11 5 282 for installing valve keys.

Special tool 11 9 953 for securing valve keys.

Fig 3: Identifying Special Tools (11 5 282), (11 5 281) And (11 5 283)

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Unscrew valve cage from special tool 11 5 281 .

Special tool 11 9 951 (1 to 3) must be replaced.

Fig 4: Identifying Valve Cage

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Remove all washers of special tool 11 5 281 (S85).

Insert special tool 11 9 951 in correct order.

Insert washer (1) with collar facing down in valve cage (2).

Fig 5: Identifying Washer And Valve Cage

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Insert felt washer (2) with smooth side facing down in valve cage (1).

Fig 6: Identifying Valve Cage And Felt Washer

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Insert washer (3) in valve cage (1).

Screw down special tool 11 5 281 with inserted special tool 11 9 951 again.

Fig 7: Identifying Washer And Valve Cage

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Modify special tool 11 5 281 with special tool 11 9 951 .

Fig 8: Identifying Special Tools (11 5 281) And (11 9 951)

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IMPORTANT: Use only approved special tools.
Risk of damage to the HVCA guide.

Adjust special tool 11 9 009 so that special tool 11 5 281 can press vertically onto the valve spring.

Fig 9: Identifying Special Tools (11 5 281) And (11 9 909)

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NOTE: Lever (1) on special tool 11 5 281 is tensioned with a spring.

Press down valve spring with special tool 11 5 281 and keep pressed.

Pretension lever (1) in direction of arrow.

Release lever (1) in tensioned position.

The valve keys still installed are thus forced out and drop into the working chamber of special tool 11 5 281 .

Repeat the operation several times if necessary until all the valve keys are forced out.

Fig 10: Releasing Lever

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Pull back lever on special tool 11 5 281 .

Valve keys (1) can now be ejected from the working chamber (2).

Fig 11: Identifying Keys, Working Chamber And Special Tool (11 5 281)

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NOTE: Lower spring plate (1).
Progressive valve spring (2).
Upper spring plate (3).

Installation:

Incorrect installation is not possible.

Fig 12: Identifying Lower Spring Plate, Progressive Valve Spring And Upper Spring Plate

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Insert lower spring plate (1).

Fig 13: Identifying Lower Spring Plate

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IMPORTANT: Use only special tool 11 9 953 to install the valve keys - risk of damage!

Press valve key (1) in direction of arrow into special tool 11 9 953 .

Fig 14: Pressing Valve Key Into Special Tool (11 9 953)

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Secure valve keys (1).

Fig 15: Identifying Valve Keys

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Press valve keys into special tool 11 5 282 with special tool 11 9 953 .

NOTE: Picture shows S85.

Fig 16: Pressing Valve Keys Into Special Tool (11 9 953) With (11 5 283)

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Press valve keys into special tool 11 5 282 with special tool 11 9 953 .

Fig 17: Pressing Valve Keys Into Special Tool (11 5 282) With (11 9 953)

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Special tool 11 5 282 is prepared for installation.

Installation:

Positioning of valve keys (1).

Fig 18: Identifying Valve Keys And Special Tool (11 5 282)

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Press down special tool 11 5 282 with special tool 11 9 009 in direction of arrow.

Installation:

Both valve keys are now pressed into their initial positions.

Fig 19: Pressing Down Special Tool (11 5 282) With (11 9 909)

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Installation:

Check that valve keys (1) are in correct installation position.

Fig 20: Identifying Valve Keys And Turning Lock

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Assemble engine.