11 33 050 Removing and installing/replacing all cam followers (N12)

WARNING: This page is about a different variant/trim than selected.

Special tools required:

11 4 480

Necessary preliminary tasks:

IMPORTANT: Rocker arms (1) are divided into bearing categories.
The tolerance classes are designated as illustrated with numbers from 1 to 5.
Already used rocker arms (1) may only be reused in the same position.

Fig 1: Identifying Rocker Arms

Courtesy of BMW OF NORTH AMERICA, INC.

Remove HVCA element in direction of arrow.

Installation:

If the HVC elements are to be reused, set them down in special tool 11 4 480 in a tidy and orderly fashion with the roller cam followers.

Fig 2: Removing HVCA Element

Courtesy of BMW OF NORTH AMERICA, INC.

Detach roller cam followers (1) from HVCA element and remove.

Set all roller cam followers down in special tool 11 4 480 in a tidy and orderly fashion.

Fig 3: Locating Roller Rocker Arm Position

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Before installing exhaust camshaft and intermediate lever, make sure roller cam followers are correctly seated (see arrows in illustration).

Assemble engine.

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