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 Tasks: 

• Remove TRANSMISSION .
• Remove FLYWHEEL .

Remove Magnet Wheel (1) From Crankshaft.

Fig 1: Identifying Magnet Wheel

Courtesy of BMW OF NORTH AMERICA, INC.

Release Screw (1) On Pulse Sensor.

Slide PULSE SENSOR (2) Upwards.

Fig 2: Identifying Pulse Sensor and Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Drill A Hole with A Drill (1) In The Radial Shaft Seal (See Arrow In Illustration).

Fig 3: Drilling Hole In Radial Shaft Seal

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 4: Removing Any Debris/Shavings From Radial Shaft Seal

Courtesy of BMW OF NORTH AMERICA, INC.

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 Using Impact Weight

Courtesy of BMW OF NORTH AMERICA, INC.

Prepare Radial Shaft Seal (1) On Special Tool 11 8 220 .

Fig 6: Preparing Radial Shaft Seal On Special Tool 11 8 220

Courtesy of BMW OF NORTH AMERICA, INC.

Position The Radial Shaft Seal (1) On The Crankshaft with Special Tool 11 8 220 .

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

Courtesy of BMW OF NORTH AMERICA, INC.

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 Against Crankcase

Courtesy of BMW OF NORTH AMERICA, INC.

Fasten Special Tool 11 9 182 with Special Tool 11 9 184 On The Crankshaft.

Fig 9: Fastening Special Tool 11 9 182 On Crankshaft Using Special Tool 11 9 184

Courtesy of BMW OF NORTH AMERICA, INC.

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 Tool 11 9 185 Onto Special Tool 11 9 181

Courtesy of BMW OF NORTH AMERICA, INC.

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: Pulling On Radial Shaft Seal Using Special Tools 11 9 181, 11 9 185, and 11 9 183

Courtesy of BMW OF NORTH AMERICA, INC.

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

Courtesy of BMW OF NORTH AMERICA, INC.

Remove All Special Tools.

Assemble Engine.