11 34 715 Replacing all valve springs (N52)

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2008 BMW Z4, 2007 BMW Z4, 2007 BMW 530xi, 2007 BMW 530i, and 2007 BMW 525xi. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 4 480
11 9 000
11 9 017

Necessary preliminary tasks:

Place cylinder head on special tool 11 9 000.

Press valve spring down on spring retainer with special tool 11 9 017.

Fig 1: Identifying Special Tool (11 9 000) And (11 9 017)

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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 2: Identifying Valve Spring Cotter Pin

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

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

Only the diameter pointing to the spring retainer at the bottom is required for correct installation of the valve spring.

Fig 3: Identifying Valve Spring Color Marking

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Arrangement:

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

Fig 4: Identifying Valve Spring Assembly And Components
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Assemble engine.

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