11 37 010 Removing and Installing/Replacing Intermediate Lever

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

Special tools required:
^ 11 4 480
^ 11 5 571
^ 11 9 571
^ 11 9 572
^ 11 9 573

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.





Position special tool 11 9 571 on bearing block of balancing shaft so that it rests on intermediate shaft (see arrow).
If necessary, set eccentric shaft (1) to minimum lift (2).





Clamp return spring with knurled screw (1).





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





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





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





Warning:
Danger of injury! at return spring.

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





Release screw (1).





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





Feed out special tool 11 9 571 in return spring (1).





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





Warning:
Danger of injury! at return spring.

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





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.
Release bolt (2).
Release centering bolt (1).
Remove locating plate and set down on special tool 11 4 480 in a tidy and orderly fashion.





Note:
Screw (1)
Setscrew (2).

Installation:
Observe screwing sequence





Remove roller cam follower (3) towards top and set down on special tool 114 480 in a tidy and orderly fashion.
Installation:
Uniform distribution must not be changed.





All roller cam followers are classified.
Values of 0 to 5 are installed.

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





Installation:
Installation of roller cam followers.
Position torsion spring (1) on special tool 11 9 571 (see arrows) and clamp with knurled screw.





Press torsion spring (1) in direction of arrow and position with lever of special tool 11 9 57 1.





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





Warning:
Danger of injury! at torsion spring.

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





Insert intermediate levers (3).
Installation:
Make sure roller cam followers (2) are in correct installation position.





Install guide block.
Insert setscrew (1).
Insert screw (2).
Join screws (1 and 2) to 5 Nm.
Release screws (1 and 2) back by 90 °.





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

Tighten fitting screw for guide block to cylinder head
1AZ Fitting screw for guide block to cylinder head
M6x35 10 Nm

Secure screw on guide block (1).

Tighten gate to cylinder head
2AZ Gate to cylinder head
M6x28 10 Nm





Feed in return spring (1) with special tool 11 5 571 and position.





Secure screw (1) of return spring.

Tighten return spring to cylinder head
3AZ Return spring to cylinder head
M6x20 10 Nm





Installation:
Insert return spring (2) in intermediate lever (1) (see arrow).
Check roller cam follow (3) again to ensure correct installation position.





Remove all special tools.
Assemble engine.