11 34 552 Removing and installing/replacing all valves (N63 hybrid)

WARNING: This page is about a different car, the 2011 BMW X6 and 2010 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

WARNING: High-voltage system - danger to life!

Necessary preliminary tasks:

Remove LEFT CYLINDER HEAD
Remove RIGHT CYLINDER HEAD
Remove camshafts. See LEFT INTAKE CAMSHAFT , RIGHT INTAKE CAMSHAFT , LEFT EXHAUST CAMSHAFT , and RIGHT EXHAUST CAMSHAFT

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

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

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

Fig 2: Installing Special Tool (11 9 008) On Special Tool (11 9 006)

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Position special tool 11 9 006 with silicone cushion on cylinder head.

Slide locks (1) in direction of arrow and pretension with eccentric shaft.

Fig 3: Positioning Of Special Tool (11 9 006) Cylinder Head Using Silicone Cushion

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Press down valve spring with special tool 11 8 840 .

Fig 4: Pressing Valve Spring Using Special Tool (11 8 840)

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Remove valve cotters (1) with a magnet.

Place valve springs and valve keys on special tool 11 4 480 in an orderly manner.

Fig 5: Positioning Of Valve Springs And Valve Keys On Special Tool (11 4 480)

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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 is decisive for the correct installation of the valve springs.
Install valve spring so that larger diameter points to spring plate at bottom.

Fig 6: Identifying Valve Spring Lower End And Upper End Length

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Arrangement:

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

Fig 7: Identifying Valve, Spring, Top Plate Spring, Valve Keys And Seal
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Release special tool 11 9 006 from cylinder head.

Remove all valves and place on special tool 11 4 480 in an orderly manner.

Fig 8: Installing Special Tool (11 9 008) On Special Tool (11 9 006)

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Assemble engine.