11 23 010 Removing and installing/replacing vibration damper (N57 Diesel)

Special tools required: 

• 11 6 480 .
• 11 7 221 .
• 11 7 222 .
• 11 7 223 .

Necessary preliminary tasks: 

• Remove ACOUSTIC COVER .
• Remove front ACOUSTIC COVER (F06, F10, F11, F12, F13, F30, F31 only).
• Remove FAN COWL with electric fan.
• Remove DRIVE BELT for alternator in the area of the vibration damper.

Using a suitable tool, lever off protective cap (1) from deflecting element (2).

Release screw (3).

Tightening torque 11 00 4AZ .

Remove deflection pulley (2).

Fig 1: Identifying Protective Cap, Deflecting Element/Deflection Pulley, And Screw

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Assemble special tool 11 7 221 with special tool 11 7 222 .

Fig 2: Assembling Special Tool (11 7 221) With Special Tool (11 7 222)

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Screw special tool 11 7 221 with special tool 11 7 222 into receptacle of the guide pulley.

Secure special tool 11 7 221 on vibration damper (1).

Fig 3: Securing Special Tools

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Undo bolts (1) on vibration damper (2).

Fig 4: Identifying Vibration Damper Bolts And Special Tool

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Remove special tool 11 7 221 in the area of the vibration damper (1).

Remove vibration damper.

Tightening torque 11 23 1AZ .

Installation note: 

Replace screws.

Replace RADIAL SHAFT SEAL at front.

Secure the special tool 11 7 221 again in the area of the vibration damper to tighten the screws.

Tighten screws crosswise.

Fig 5: Identifying Vibration Damper And Special Tool

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Installation note: 

Position vibration damper as illustrated when refitting.

Fig 6: Positioning Vibration Damper

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Assemble engine.