11 12 595 Checking a valve guide for wear (M62, S62)

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 BMW 540i, 2002 BMW 540i, 2001 BMW 540i, 2000 BMW 540i, and 1999 BMW 540i. However, it is still accessible from the selected car via links, so may be relevant.

(valve removed)

To measure tilt clearance, insert new valve so that valve stem end is flush with valve guide.

Mount dial gage and measure tilt clearance.

NOTE: Max. permissible tilt clearance, refer to ENGINE - TECHNICAL DATA - 540I (E39) .

Fig 1: Mounting Dial Gage And Measuring Tilt Clearance

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: If tilt clearance is excessive, valve guide is reamed out and a repair valve with a larger shaft diameter is installed.

If necessary, ream out valve guide, refer to 11 12 600 REAMING A VALVE GUIDE (M62, S62) .

Fig 2: Identifying Tilt Clearance

Courtesy of BMW OF NORTH AMERICA, INC.