11 27 110 Removing and refitting/replacing balancer shafts (N20)

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

Special tools required:

IMPORTANT: The counterbalance shaft must be adjusted to the motor.

Necessary preliminary tasks:

Installation note:

Wet special tool 2 219 548 with oil to simplify dismantling and installation.

Secure crankshaft with special tool 2 219 548 via the dowel hole.

Fig 1: Identifying Special Tool (2 219 548)

Loosen sealing cap using a screwdriver.

Fig 2: Loosening Sealing Cap Using Screwdriver

Installation note:

Position counterbalance shaft with special tool 2 212 825 .

Secure special tool 2 212 825 on oil pump housing with screw (1).

If special tool 2 212 825 cannot be positioned, the TIMING must be readjusted.

Fig 3: Positioning Counterbalance Shaft With Special Tool (2 212 825)

IMPORTANT: Sprocket must be blocked with special tool 2 318 117 in order to release central bolt (2).

Attach special tool 2 318 117 to crankcase with screws (3).

Press back chain tensioner and fix with special tool 11 4 120 .

Installation note:

Fig 4: Attaching Special Tool (2 318 117) To Crankcase

There are various central bolts of the oil pump/camshaft sprocket.

Release oil pump central bolt (2).

Tightening torque 11 41 5AZ .

Unfasten screws (2).

Release screws (1).

Tightening torque: 11 41 3AZ.

Remove gear and chain module (2).

Fig 5: Identifying Chain Module And Screws

IMPORTANT: Observe different screw lengths.

Release screws (1).

Tightening torque 11 41 6AZ/2AZ .

Release screws, remove oil pump with counterbalance shaft.

Tightening torque 11 41 2AZ .

Installation note:

Check spacer bushes for secure seating and damage; replace if necessary.

Fig 6: Identifying Oil Pump And Screws

Assemble engine.