11 14 151 Replacing crankshaft seal on transmission side (N20)

Special tools required:

Necessary preliminary tasks:

Remove FLYWHEEL .

IMPORTANT: Magnet wheel (1) is magnetic.
Keep magnet wheel (1) in a plastic bag away from metallic debris.

Remove magnet wheel (1) from crankshaft.

Installation note:

Check the fitting sleeve for damage.

Note the installation position of the magnet wheel.

Fig 1: Identifying Magnet Wheel On Crankshaft

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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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IMPORTANT: Drill size maximum 2, 5 mm.
Remove metallic debris immediately.

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

Fig 3: Drilling Hole In Radial Shaft Seal

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IMPORTANT: Remove metal shavings from the radial shaft seal (1).

Fig 4: Removing Metal Shavings After Drilling

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IMPORTANT: Risk of damage at the crankcase and on the running surface of the crankshaft.

Immediately carefully remove residual metallic debris.

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: Driving Out Radial Shaft Seal With Impact Weight

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

Fig 6: Identifying Radial Shaft Seal On 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

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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: Identifying 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: Fastening Special Tools On Crankshaft

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Installation note:

Prepare special tool 11 9 181 for installation.

Connect special tool 2 212 827 onto special tool 11 9 181 .

Fig 10: Connecting Special Tool 2 212 827 Onto Special Tool 11 9 181

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Pull on radial shaft seal with special tools 11 9 181 and 2 212 827 in combination with special tool 11 9 183 .

Fig 11: Pulling On Radial Shaft Seal Using Special Tools

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

Fig 12: Screwing On Radial Shaft Seal To Limit Position

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Remove all special tools.

Assemble engine.