11 34 715 Replacing all valve springs (S63)
WARNING: This page is about a different car, the 2013 BMW X5 M, 2012 BMW X5 M, 2011 BMW X5 M, and 2010 BMW X5 M. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required:
Necessary preliminary tasks:
- Remove LEFT CYLINDER HEAD .
- Remove RIGHT CYLINDER HEAD .
- Remove camshafts . See 11 31 032 REMOVE AND INSTALL/REPLACE LEFT INTAKE CAMSHAFT (S63) , 11 31 034 REMOVING AND INSTALLING/REPLACING RIGHT INLET CAMSHAFT (S63) , 11 31 036 REMOVING AND INSTALLING/REPLACING LEFT EXHAUST CAMSHAFT (S63) or 11 31 038 REMOVING AND INSTALLING/RENEWING RIGHT EXHAUST CAMSHAFT (S63) .
Mount cylinder head (1) on special tool 11 9 000 .
Prepare special tool 11 9 008 on special tool 11 9 006 .
Position special tool 11 9 006 with silicone cushion on cylinder head.
Slide locks (1) in direction of arrow and pretension with eccentric shaft.
Press down valve spring with special tool 11 8 840 .
Remove valve cotters (1) with a magnet.
Place valve springs and valve keys on special tool 11 4 480 in an orderly manner.
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.
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.
Arrangement:
- Valve
- Valve stem seal with spring plate, bottom
- Valve spring
- Top plate spring
- Valve keys
Assemble engine.