11 33 050 Removing and installing/replacing all rocker arms (N52)

Special tools required:

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.

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

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

Installation:

Before installing exhaust camshaft and intermediate lever, make sure roller cam followers are correctly seated.

Remove HVC 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: Identifying Roller Cam Followers

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

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