Special tools required:
WARNING: This page is about a different car, the 2003 BMW 525i, 2002 BMW 525i, and 2001 BMW 525i. However, it is still accessible from the selected car via links, so may be relevant.
- 00 4 210
(valve removed)
NOTE:
In event of excessive clearance between valve stem and valve guide:
Valve guide is reamed and a repair valve with a larger stem diameter is installed.
Assemble reaming tool and guide taper (1) from special tool kit 00 4 210 depending on stem diameter. Press guide taper (1) onto valve seat. Starting from combustion chamber side, ream valve guide dry. Rotate reaming tool once in downwards direction.
NOTE:
Remachine valve seat after reaming.