11 23 010 Removing and installing or replacing vibration damper (M52TU / M54 / M56)

Special tools required: 

• 11 8 190
• 11 8 200
• 11 8 210

Necessary preliminary tasks: 

• Unscrew and remove splash guard
• Remove fan impeller with fan clutch and fan cowl
• E83/E85/E60: Remove fan cowl with electric fan
• Remove A/C compressor drive belt, refer to 11 28 050 REPLACING A/C COMPRESSOR DRIVE BELT (M52 / S52 / M52TU / M54 / M56) 
• Remove alternator drive belt, refer to 11 28 010 REPLACING ALTERNATOR DRIVE BELT (M52 / S52 / M52TU / M54 / M56) 

Protect cooler against damage.

Version 1 

Vibration damper and hub for vibration damper are two parts: Unscrew vibration damper bolts and take off vibration damper.

Fig 1: Unscrewing Vibration Damper Bolts

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Version 1 

Vibration damper and hub for vibration damper are two parts:

Installation: 

Align locating bore in vibration damper to dowel pin.

Fig 2: Aligning Locating Bore In Vibration Damper To Dowel Pin

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Install and tighten down screws.

Tightening torque 11 23 3AZ. Refer to ENGINE - TIGHTENING TORQUES .

Version 2 

Vibration damper and hub for vibration damper are one part:

Screw special tool 11 8 190 to special tool 11 8 200.

Fig 3: Identifying Special Tool

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Version 2 

Fig 4: Installing Special Tool

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Version 2 

When releasing and tightening down central bolt, grip special tool 11 8 190 with assistance of a second person.

Version 2 

Insert special tool 11 8 200 in openings on vibration damper and turn counterclockwise so that counter-supports snap into place on vibration damper.

Fig 5: Releasing Central Screw

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Release central screw (1).

Version 2 

Feed out special tools 11 8 190/ 11 8 200.

Fig 6: Detaching Vibration Damper

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Remove central screw and washer.

Carefully detach vibration damper (1) by hand.

Version 2 

Insert special tool 11 8 200 in openings on vibration damper and turn clockwise so that counter-supports snap into place on vibration damper.

Fig 7: Inserting Special Tool In Openings On Vibration Damper

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Version 2 

Screw out spindle (1) on special tool 11 8 210 as far as possible.

Fig 8: Screwing Out Spindle On Special Tool

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Version 2 

Protect cooler against damage.

Carefully install special tool 11 8 210.

Screw special tool 11 8 210 to special tool 11 8 200.

Detach vibration damper by turning spindle (1) on special tool 11 8 210.

Fig 9: Detaching Vibration Damper

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Version 2 

Installation: 

Check featherkey (1) for damage and correct installation position.

Fig 10: Identifying Featherkey

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Replace radial seal in lower timing case cover. Refer to 11 14 141 REPLACING RADIAL SEAL IN LOWER TIMING CASE COVER .

Version 2 

Installation: 

Align groove (1) in vibration damper to featherkey.

Fig 11: Aligning Groove In Vibration Damper To Featherkey

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Fit vibration damper.

Version 2 

Installation: 

Replace central screw (1).

Fig 12: Replacing Central Screw

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Install central screw and washer.

Version 2 

Installation: 

Screw special tool 11 8 190 to special tool 11 8 200.

Fig 13: Identifying Special Tool

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Version 2 

Insert special tool 11 8 200 in openings on vibration damper and turn clockwise so that counter-supports snap into place on vibration damper.

Fig 14: Tightening Down Central Screw

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Tighten down central screw (1).

Tightening torque, 11 23 2AZ. Refer to ENGINE - TIGHTENING TORQUES .