11 37 010 Removing and installing/replacing intermediate lever (N12)

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

WARNING: Danger of injury!
A special tool is essential for opening the return spring on the intermediate lever.

Necessary preliminary tasks:

Remove CYLINDER HEAD COVER .

IMPORTANT: Release screw with special tool only.

Fig 1: Identifying Screw With Special Tool

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Position special tool 11 9 571 on bearing block of balancing shaft so that it rests on intermediate shaft (see arrows).

If necessary, set eccentric shaft (1) to minimum lift (2).

Fig 2: Positioning Special Tool (11 9 571) On Balancing Shaft Bearing Block

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Clamp return spring with knurled screw (1).

Fig 3: Clamping Return Spring With Knurled Screw

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Make sure return spring is correctly seated on special tool 11 9 571 (see arrow).

Fig 4: Placing Return Spring On Special Tool (11 9 571)

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When special tool 11 9 571 is correctly positioned, return spring (2) can be pressed back with lever (1).

Fig 5: Identifying Return Spring And Lever With Special Tool

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Press lever (1) in direction of arrow on special tool 11 9 571 until locking hook (2) engages on special tool 11 9 571.

Fig 6: Pressing Lever On Special Tool (11 9 571)

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WARNING: Risk of injury! at return spring.

Locking hook (1) must engage on special tool 11 9 571 (see arrow).

Fig 7: Identifying Oil Sump Bolts Area Line

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Release screw (1).

Fig 8: Identifying Screw

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Prepare special tool 11 9 572 on a vice (1).

Fig 9: Preparing Special Tool (11 9 572) On Vice

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Feed out special tool 11 9 571 with torsion spring (1).

Fig 10: Removing Special Tool (11 9 571) With Torsion Spring

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Set down special tool 11 9 571 on special tool 11 9 572 (see arrow).

Fig 11: Setting Special Tool (11 9 571) On Special Tool (11 9 572)

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WARNING: Risk of injury! at return spring.

Release locking hook (1) on special tool 11 9 571.

Release lever (2) in direction of arrow.

Fig 12: Removing Locking Hook On Special Tool (11 9 571)

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Release knurled screw (1) in direction of arrow.

Remove return spring (2).

Set all return springs down on special tool 11 4 480 in a tidy and orderly fashion.

Fig 13: Removing Knurled Screw With Return Spring

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Release screw (2).

Release centering bolt (1).

Remove locating plate and set down on special tool 11 4 480 in a tidy and orderly fashion.

Fig 14: Identifying Screw And Central Bolt

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NOTE: Screw (1)
Setscrew (2).

Installation:

Observe screwing sequence

Fig 15: Identifying Screw And Setscrew

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Remove intermediate lever (3) towards top and set down on special tool 11 4 480 in a tidy and orderly fashion.

Installation:

Uniform distribution must not be changed.

Fig 16: Identifying Intermediate Lever

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All intermediate levers are classified.

Values of 0 to 5 are installed.

NOTE: A uniform distribution can only be calculated with the diagnosis tester.

Fig 17: Identifying Intermediate Levers With Values

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Installation:

Installation of intermediate levers.

Position torsion spring (1) on special tool 11 9 571 (see arrows) and clamp with knurled screw.

Fig 18: Positioning Torsion Spring On Special Tool (11 9 571)

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Press torsion spring (1) in direction of arrow and position with lever on special tool 11 9 571.

Fig 19: Identifying Torsion Spring With Special Tool (11 9 571)

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Pretension torsion spring (1) with special tool 11 9 571 in direction of arrow.

Fig 20: Pretension Torsion Spring Using Special Tool (11 9 571)

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WARNING: Risk of injury! at torsion spring.

Locking hook (1) must engage on special tool 11 9 571 (see arrow).

Fig 21: Engaging Locking Hook On Special Tool (11 9 571)

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Insert intermediate levers (3).

Installation:

Make sure roller cam followers (2) are in correct installation position.

Fig 22: Identifying Roller Cam Followers And Intermediate Levers

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Installation:

Make sure rollers of intermediate lever are correctly guided in guide block.

Install guide block.

Insert setscrew (1).

Insert bolt (2).

Join screws (1 and 2) to 5 Nm.

Release screws (1 and 2) back by 90°.

Fig 23: Identifying Bolt And Setscrew

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Pretension guide block (1) with special tool 11 9 573.

Secure setscrews of guide block (1).

Tightening torque: 11 37 1AZ .

Secure screw on guide block (1).

Tightening torque: 11 37 2AZ .

Fig 24: Identifying Guide Block With Special Tool (11 9 573)

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Feed in return spring (1) with special tool 11 9 571 and position.

Fig 25: Inserting Return Spring Using Special Tool (11 9 573)

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Secure screw (1) of return spring.

Tightening torque: 11 37 3AZ.

Fig 26: Identifying Screw

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Installation:

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

Check intermediate lever (1) and roller cam follower (3) again for correct installation position.

Fig 27: Inserting Torsion Spring In Intermediate Lever

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Remove all special tools.

Assemble engine.