11 34 552 Removing And Installing Or Replacing All Valves (N51)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 128i, and 2009 BMW 128i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

For the following special tools, refer to ENGINE - SPECIAL TOOLS (N51) .

11 4 480

Necessary preliminary tasks:

Remove cylinder head . See 11 12 000 REMOVING AND INSTALLING OR SEALING CYLINDER HEAD COVER (N51) .
Remove intermediate lever . See 11 37 010 REMOVING AND INSTALLING/REPLACING INTERMEDIATE LEVER (N51) .
Remove eccentric shaft . See 11 37 005 REMOVING AND INSTALLING/REPLACING ECCENTRIC SHAFT (N51) .
Remove inlet camshaft . See 11 31 025 REMOVING AND INSTALLING/REPLACING INLET CAMSHAFT (N51) .
Remove exhaust camshaft . See 11 31 028 REMOVING AND INSTALLING/REPLACING EXHAUST CAMSHAFT (N51) .
Remove roller cam follower . See 11 33 050 REMOVING AND INSTALLING/REPLACING ALL ROCKER ARMS (N51) .
Remove valve springs . See 11 34 715 REPLACING ALL VALVE SPRINGS (N51) .
Remove valve stem seals . See 11 34 560 REPLACING ALL VALVE STEM SEALS (N51) .

Arrangement:

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

If the valves are to be reused, set then down in special tool 11 4 480 in a tidy and orderly fashion. See 11 4 480 PLACEMENT BOARDS (2 X) .

Fig 1: Exploded View Of Valve Components

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

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