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Home >> BMW >> 2009 >> X5 35d >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine - Repair (N62)) >> 37 Variable Valve Gear >> 11 37 014 Removing And Installing/Replacing Right Intermediate Levers (N62 From 9/03 And N62TU)

11 37 014 Removing And Installing/Replacing Right Intermediate Levers (N62 From 9/03 And N62TU)

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

Special tools required: 

(cylinder bank 1 to 4) 

Removal of intermediate levers is described separately from installation.

Necessary preliminary tasks: 

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 in direction of rotation until cam on 1st cylinder is positioned horizontally as shown in illustration.

Fig 1: Locating Camshaft
G04739844Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Camshaft bearing caps of cylinders 1 to 4 and 5 to 8 must not be mixed up.
NOTE: Bearing caps of inlet camshaft are marked on cylinder bank 1 to 4 with L E1 to L E5 from inlet side.

Release nuts and remove bearing cap L E1.

Fig 2: Locating Bearing Cap L E1 And Nuts
G04739890Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 3: Locating Camshaft Bearing Bracket And Nuts
G04739846Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Rocker arms are freely accessible after bearing bracket has been removed.

Do "not" remove rocker arm (1) on inlet side.

IMPORTANT: Rocker 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.

Fig 4: Locating Rocker Arms On Inlet Side
G04739799Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 5: Identifying Special Tool (11 9 470)
G04739800Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Do not tilt bearing bracket (1).

Carefully lift out bearing bracket (1).

Fig 6: Identifying Bearing Bracket
G04739849Courtesy 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 7: Identifying Special Tool (11 9 473) And (11 9 470)
G04739850Courtesy 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 8: Identifying Lower Section Of Bearing Bracket
G04739851Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: The mounting of the bearing bracket described later can only be carried out if the inlet camshaft has not been axially displaced.

Special tools 11 9 472  and 11 9 475  prevent the inlet camshaft from rotating and moving while the intermediate levers are installed.

Fit special tool 11 9 472  and secure with special tool 11 9 47  5.

Fig 9: Identifying Special Tool (11 9 474) And (11 9 472)
G04739885Courtesy of BMW OF NORTH AMERICA, INC.

Insert special tool 11 9 474  and initially tighten without play.

Fig 10: Identifying Special Tool (11 9 474) And (11 9 472)
G04739884Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Removal of intermediate levers is described on 4th cylinder.
The same procedure is applicable to cylinders 1 to 3.

Raise one end of torsion spring (1) with special tool 11 9 480  .

Lift out intermediate lever (2) and set down in an orderly fashion.

IMPORTANT: Keep holding torsion spring (1) with special tool 11 9 480  .
Fig 11: Identifying Intermediate Lever And Torsion Spring
G04739853Courtesy of BMW OF NORTH AMERICA, INC.

Attach special tool 11 9 490  to end of torsion spring.

Support end of torsion spring protected with special tool 11 9 490  on inlet camshaft.

Fig 12: Identifying Special Tool (11 9 480) And (11 9 490)
G04739854Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Intermediate levers (2) are divided into individual tolerance classes.
Only intermediate levers of the same tolerance class may be fitted in a single cylinder head.
The tolerance classes are designated as illustrated with the numbers from 1 to 5.
Used intermediate levers (2) may only be reused in the same position.
Fig 13: Locating Intermediate Levers
G04739807Courtesy of BMW OF NORTH AMERICA, INC.

Raise second end of torsion spring (1) with special tool 11 9 480  .

Lift out intermediate lever (2) and set down in an orderly fashion.

IMPORTANT: Keep holding torsion spring (1) with special tool 11 9 480  .
Fig 14: Identifying Intermediate Lever, Torsion Spring With Special Tool (11 9 480)
G04739856Courtesy of BMW OF NORTH AMERICA, INC.

Attach special tool 11 9 490  to second end of torsion spring.

Support end of torsion spring protected with special tool 11 9 490  on inlet camshaft.

Fig 15: Identifying Special Tool (11 9 480) And (11 9 490)
G04739857Courtesy of BMW OF NORTH AMERICA, INC.

Installation 

Removal of intermediate levers is described separately from installation.

Clean all bearings and cams of inlet camshaft and lubricate with engine oil.

IMPORTANT: Intermediate levers (2) are divided into individual tolerance classes.
Only intermediate levers of the same tolerance class may be fitted in a single cylinder head.
The tolerance classes are designated as illustrated with the numbers from 1 to 5.
Used intermediate levers (2) may only be reused in the same position.

Lubricate all sliding surfaces on intermediate lever (2) with engine oil.

Fig 16: Locating Intermediate Levers
G04739807Courtesy of BMW OF NORTH AMERICA, INC.

Raise torsion spring (1) with special tool 11 9 480  .

Remove special tool 11 9 490  .

Fig 17: Identifying Special Tool (11 9 480) And (11 9 490)
G04739857Courtesy of BMW OF NORTH AMERICA, INC.

Hold torsion spring (1) with special tool 11 9 480  .

Install intermediate lever (2) from above.

Insert end of torsion spring (1) into guide on intermediate lever (2).

Fig 18: Identifying Intermediate Lever, Torsion Spring With Special Tool (11 9 480)
G04739856Courtesy of BMW OF NORTH AMERICA, INC.

Raise second end of torsion spring with special tool 11 9 480  .

Remove special tool 11 9 490  .

Fig 19: Identifying Special Tool (11 9 480) And (11 9 490)
G04739854Courtesy of BMW OF NORTH AMERICA, INC.

Hold torsion spring (1) with special tool 11 9 480  .

Install intermediate lever (2) from above.

Insert end of torsion spring (1) into guide on intermediate lever (2).

Fig 20: Identifying Intermediate Lever And Torsion Spring
G04739853Courtesy of BMW OF NORTH AMERICA, INC.

Remove special tool 11 9 474  .

Fig 21: Identifying Special Tool (11 9 474) And (11 9 472)
G04739884Courtesy of BMW OF NORTH AMERICA, INC.

Remove special tools 11 9 472  and special tools 11 9 475  .

Fig 22: Identifying Special Tool (11 9 474) And (11 9 472)
G04739885Courtesy of BMW OF NORTH AMERICA, INC.

Ends of compression rings (1) point upwards.

Make sure compression rings (1) are engaged at ends.

Fig 23: Locating Compression Rings
G04739838Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Rocker arms (1) slip slightly when bearing bracket is fitted.
Make sure rocker arms (1) are secured as illustrated on hydraulic valve clearance compensating elements and on valves.

Align rockers (1) straight.

Fig 24: Identifying Rocker Arms
G04739839Courtesy of BMW OF NORTH AMERICA, INC.

Remove special tool 11 9 473  .

Remove bearing bracket (1) from special tool 11 9 470  .

Fig 25: Identifying Camshaft Bearing Caps Of Cylinders
G04793802Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Do not tilt bearing bracket (1).

Lower bearing bracket (1) from above and carefully bring into contact with cylinder head.

Insert nuts and tighten by hand without play.

IMPORTANT: Make sure none of the intermediate levers or rocker arms have slipped out.

Tighten down nuts from inside to outside.

Tightening torque 11 31 1AZ  . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Fig 26: Locating Camshaft Bearing Bracket And Nuts
G04739846Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Camshaft bearing caps of cylinders 1 to 4 and 5 to 8 must not be mixed up.

Fit bearing cap L E1 in such a way that marking is legible from inlet side.

Install nuts and tighten down.

Tightening torque 11 31 1AZ  . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Fig 27: Locating Bearing Cap L E1 And Nuts
G04739890Courtesy of BMW OF NORTH AMERICA, INC.

Rotate inlet camshaft at hexagon head against direction of rotation until cam on 1st cylinder points downwards at an angle as shown in illustration.

NOTE: The marking (1) on the hexagon drive of the inlet camshaft faces upwards.
Fig 28: Locating Marking On Hexagon Drive Of Inlet Camshaft
G04739891Courtesy of BMW OF NORTH AMERICA, INC.

Install inlet and exhaust adjustment unit on right side  . See 11 36 048 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON RIGHT SIDE (N62/N62TU) .

Install spark plugs on cylinder bank 1 to 4.

Install right cylinder head cover  . See 11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU) .

Install ignition coils on cylinder bank 1 to 4.

Install servomotor for right eccentric shaft.  See 11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU) .

Assemble engine.

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