11 14 151 Replacing radial crankshaft seal on transmission side (N55)

Special tools required: 

• 11 8 220
• 11 9 181
• 11 9 182
• 11 9 183
• 11 9 184
• 11 9 185
• 23 0 490

Necessary preliminary work: 

• Remove TRANSMISSION .
• Remove FLYWHEEL .

Remove magnet wheel (1) from crankshaft.

Fig 1: Identifying Magnet Wheel

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Release screw on pulse sensor (1).

Slide PULSE SENSOR (2) upwards.

Fig 2: Identifying Pulse Sensor And Screw

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Drill a hole with a drill (1) in the radial shaft seal (see arrow).

Fig 3: Drilling Hole Into Radial Shaft Seal

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Fig 4: Checking For Debris On Radial Shaft Seal

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Screw in special tool 23 0 490 in direction of arrow.

Drive out radial shaft seal with impact weight in direction of arrow.

Fig 5: Removing Radial Shaft Seal Using Impact Weight

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Prepare radial shaft seal (1) on special tool 11 8 220 .

Fig 6: Identifying Radial Shaft Seal And Special Tool (11 8 220)

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Position the radial shaft seal (1) on the crankshaft using special tool 11 8 220 .

Fig 7: Positioning Radial Shaft Seal On Crankshaft Using Special Tool (11 8 220)

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Brush radial shaft seal (1) over the special tool 11 8 220 .

Move radial shaft seal (1) parallel up against the crankcase.

Fig 8: Moving Radial Shaft Seal Parallel Up Against Crankcase

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Fasten special tool 11 9 182 with special tool 11 9 184 on the crankshaft.

Fig 9: Installing Special Tools Onto Crankshaft

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Installation note: 

Prepare special tool 11 9 181 for installation.

Connect special tool 11 9 185 onto special tool 11 9 181 .

Fig 10: Connecting Special Tools (11 9 185) And (11 8 181)

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Pull on radial shaft seal with special tool 11 9 181 and 11 9 185 in combination with special tool 11 9 183 .

Fig 11: Removing Radial Shaft Seal Using Special Tools (11 9 181) And (11 9 185)

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Screw on radial shaft seal with special tool 11 9 183 to limit position.

Fig 12: Installing Radial Shaft Seal Using Special Tool (11 9 183)

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Remove all special tools.

Assemble engine.