11 33 516 Removing and installing/replacing rocker arms on left inlet side (N62 from 9/03): Removal

Removal of rocker arms is described separately from installation.

Remove servomotor for left eccentric shaft.

Remove ignition coils on cylinder bank 5 to 8. See IGNITION COIL .

Remove left cylinder head cover .

Remove spark plugs on cylinder bank 5 to 8.

Remove inlet and exhaust adjustment unit on left side.

IMPORTANT: The inlet camshaft must first be rotated so that when the bearing bracket is removed the intermediate levers do not slip out and damage the camshaft.

Rotate inlet camshaft against direction of rotation until lettering (1) on 8th cylinder points upwards in cylinder axis and cam is horizontal.

Fig 1: Identifying Number On 8th Cylinder Points Upwards In Cylinder Axis

G03267069

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Do not mix up the camshaft bearing covers of cylinders 1 to 4 and 5 to 8.

NOTE: Bearing caps of inlet camshaft are marked on cylinder bank 5 to 8 with R E1 to R E5 from inlet side.

Release nuts and remove bearing cap R E1.

Fig 2: Removing Bearing Cap R E1

G03267070

Courtesy of BMW OF NORTH AMERICA, INC.

Release 8 nuts of bearing bracket (1) from outside to inside.

Fig 3: Removing Nuts Of Bearing Bracket From Outside To Inside

G03267071

Courtesy of BMW OF NORTH AMERICA, INC.

Clamp special tool 11 9 470 as illustrated in a vise.

Fig 4: Clamping Special Tool 11 9 470 In Vise

G03267072

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Do not tilt bearing bracket (1).

Carefully lift out bearing bracket (1).

Fig 5: Lifting Out Bearing Bracket

G03267073

Courtesy of BMW OF NORTH AMERICA, INC.

Place bearing bracket (1) with inlet camshaft and eccentric shaft as illustrated on special tool 11 9 470.

Secure bearing bracket (1) with a nut (special tool 11 9 473).

Fig 6: Secure Bearing Bracket With Nut (Special Tool 11 9 473)

G03267074

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: The lower section of the bearing bracket (1) is machined with the cylinder head and must not be mixed up.

NOTE: Lower section of bearing bracket (1) remains on cylinder head.

Fig 7: Remaining Lower Section Of Bearing Bracket On Cylinder Head

G03267075

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Rockers arms (1) are divided into individual tolerance classes.
The tolerance classes are designated as illustrated with the numbers from 1 to 4.
Used rocker arms (1) may only be reused in the same position.

When replacing rocker arms (1) on inlet side: install rocker arms of the same tolerance class in the same position.

Remove rocker arms (1) on inlet side and set aside in neat order.

Fig 8: Identifying Rocker Arm

G03267076

Courtesy of BMW OF NORTH AMERICA, INC.