11 37 010 Removing and installing/replacing intermediate levers (N52)

WARNING: This page does not describe the selected car, but rather 50 other vehicles, including the 2016 BMW M5, 2016 BMW ActiveHybrid 5, 2016 BMW 550i xDrive, 2016 BMW 550i, and 2016 BMW 535i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

IMPORTANT: Aluminum-magnesium materials .
No steel screws/bolts may be used due to the threat of electrochemical corrosion.
A magnesium crankcase requires aluminum screws/bolts exclusively.
Aluminum screws/bolts must be replaced each time they are released .
Aluminum screws/bolts are permitted with and without color coding (blue).
For reliable identification:
Aluminum screws/bolts are not magnetic .
Joining torque and angle of rotation must be observed without fail (risk of damage) .

Necessary preliminary work:

Remove CYLINDER HEAD COVER .

If necessary, move eccentric shaft (1) on mounting flats to minimum lift (2).

Fig 1: Moving Eccentric Shaft On Mounting Flats To Minimum Lift

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Oil spray nozzle must be removed from 3rd cylinder (make a note of installation position of oil spray nozzle).

Fig 2: Identifying Oil Spray Nozzle And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Position special tool 11 7 110 on return spring (1) (see arrows).

Fig 3: Positioning Special Tool (11 7 110) On Return Spring

Courtesy of BMW OF NORTH AMERICA, INC.

WARNING: Risk of injury in event of incorrect use.

IMPORTANT: Improper handling. Risk of damage!

Place special tool 11 7 110 flat on cylinder head.

Turn knurled screw (1) in direction of arrow until both clamping levers secure return spring in guide block.

Fig 4: Turning Knurled Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Return spring is correctly preloaded when both clamping levers are parallel to guide block.

Fig 5: Identifying Preloaded Return Spring

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Risk of damage!

Left and right return springs (1) must be positioned in lateral guide of special tool 11 7 110 .

Fig 6: Positioning Return Springs In Lateral Guide Of Special Tool (11 7 110)

Courtesy of BMW OF NORTH AMERICA, INC.

Preload return spring with lever (1) on special tool 11 7 110 in direction of arrow.

Fig 7: Preloading Return Spring On Special Tool (11 7 110)

Courtesy of BMW OF NORTH AMERICA, INC.

Lock special tool 11 7 110 with latching hook on lever (1).

IMPORTANT: Screw fixing on return spring can only be released with special tool 11 7 110 secured.

Fig 8: Locking Special Tool (11 7 110) With Catch On Lever

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Fig 9: Identifying Screw

Courtesy of BMW OF NORTH AMERICA, INC.

WARNING: Risk of injury in event of incorrect use.
Lever (1) is preloaded.

IMPORTANT: Improper handling.
Risk of damage!

Secure lever (1)

Press back latching hook (2).

Return spring tension can now be released.

Fig 10: Identifying Latching Hook And Lever

Courtesy of BMW OF NORTH AMERICA, INC.

Release knurled screw (1) on special tool 11 7 110 in direction of arrow.

Fig 11: Releasing Knurled Screw On Special Tool (11 7 110)

Courtesy of BMW OF NORTH AMERICA, INC.

Release special tool 11 7 110 in direction of arrow from return spring (1).

Fig 12: Releasing Special Tool (11 7 110) From Return Spring

Courtesy of BMW OF NORTH AMERICA, INC.

Press torsion spring apart at positions (1).

Remove torsion spring towards top.

Fig 13: Removing Return Spring

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Uniform distribution must not be changed.
Place all components in clean and orderly condition in special tool 11 4 481 .

Fig 14: Identifying Removed Engine Components Properly Arranged On Tray (11 4 481)

Courtesy of BMW OF NORTH AMERICA, INC.

All components must be reinstalled in the same positions in an engine which has already been in use.

Eccentric shaft with bearing
Bearing caps of eccentric shaft (set out in order)
Intake camshaft
Bearing caps of intake camshaft (set out in order)
Intake valves with valve springs
Valve plates and valve keys
Rocker arms with HVCA elements (set out in order)
Torsion springs
Guide blocks (set out in order)
Intermediate levers (set out in order)

Release screws (1) on guide block (2).

Tightening torque 11 37 1AZ .

Place all guide blocks (2) in neat order in special tool 11 4 481 .

Installation:

Mixing up the guide blocks (2) will cause the engine to suffer idle-speed fluctuations.

This will result in maladjustment of uniform distribution .

Fig 15: Identifying Guide Block Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

All contact surfaces (1) of guide block must be clean and free from oil and grease. If necessary, clean contact surfaces (1).

Fig 16: Identifying Contact Surfaces Of Gates

Courtesy of BMW OF NORTH AMERICA, INC.

Lift out intermediate levers (2).

Place all intermediate levers (2) in neat order in special tool 11 4 481 .

Installation:

Mixing up the intermediate levers (2) will cause the engine to suffer idle-speed fluctuations.

Installation:

All contact surfaces (1) must be clean and free from oil and grease. If necessary, clean contact surfaces (1).

Fig 17: Identifying Contact Surface And Intermediate Levers

Courtesy of BMW OF NORTH AMERICA, INC.

All intermediate levers (1) are classified.

All intermediate levers (1) must be reinstalled in the same positions in an engine which has already been in use.

Fig 18: Locating Marking On Intermediate Lever

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Before installing intermediate levers (2), make sure rocker arms are correctly positioned.
Risk of damage!

Install intermediate levers (2).

Fig 19: Identifying Contact Surface And Intermediate Levers

Courtesy of BMW OF NORTH AMERICA, INC.

Fit guide block (2) cleanly into opening.

Tighten screws (1) hand-tight.

Check that intermediate levers are in correct installation position.

Release screws (1) by a 1/4 turn.

Fig 20: Identifying Gate And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Secure special tool 11 4 450 to screw connection (1) of eccentric shaft.

Shift eccentric lever (3) on special tool 11 4 450 in direction of arrow.

Guide block is now preloaded.

Insert screws (2) of guide blocks.

Tightening torque 11 37 1AZ .

Installation:

At cylinder no. 3, the guide block can be pre-installed with one screw (internal) only.

Fig 21: Securing Special Tool And Moving Eccentric Lever

Courtesy of BMW OF NORTH AMERICA, INC.

Oil spray nozzle is fitted only after torsion spring has been installed.

Install torsion spring (2) on guide block.

Installation:

Insert torsion spring (2) in intermediate lever (1) (see arrow).

Check that rocker arm (3) is in correct installation position.

Fig 22: Identifying Throttle Return Spring, Intermediate Lever, And Roller Cam Follower

Courtesy of BMW OF NORTH AMERICA, INC.

Position special tool 11 7 110 on return spring.

Fig 23: Releasing Special Tool (11 7 110) From Return Spring

Courtesy of BMW OF NORTH AMERICA, INC.

Clamp return spring with knurled screw (1) in direction of arrow.

Fig 24: Clamping Throttle Return Spring With Knurled Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Return spring (1) is positioned correctly when catches (see arrows) are surrounding return spring (1).

Fig 25: Positioning Return Spring

Courtesy of BMW OF NORTH AMERICA, INC.

WARNING: Risk of injury in event of incorrect use.

IMPORTANT: Improper handling.
Risk of damage!
Check return spring on intermediate lever to ensure correct installation position.

Press special tool 11 7 110 to stop in direction of arrow.

Fig 26: Pressing Special Tool (11 7 110)

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Pay attention to thread on cylinder head.
Risk of damage!

Tighten bolt (1).

Tightening torque 11 37 2AZ .

Fig 27: Identifying Screw

Courtesy of BMW OF NORTH AMERICA, INC.

At cylinder no. 3, adjust oil spray nozzle (2) so that oil spray points precisely towards spline teeth (3).

Insert screw (1) with oil spray nozzle (2) (external).

Tightening torque 11 37 4AZ .

Fig 28: Identifying Oil Spray Nozzle And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.