11 14 151 Replacing crankshaft seal on transmission side (N20, N26)

Special tools required :

Necessary preliminary tasks :

Remove FLYWHEEL .

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

G09844477

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw on pulse sensor (1).

Slide PULSE SENSOR (2) upwards.

Fig 2: Identifying Screw On Pulse Sensor

G10205298

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

Fig 3: Drilling Hole In Radial Shaft Seal

G09844479

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 4: Identifying Radial Shaft Seal

G09844480

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Risk of damage at the crankcase and on the running surface of the crankshaft.
Immediately carefully remove residual 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: Removing Radial Shaft Seal

G09844481

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

G06904210

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

G06904211

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 Parallel Up Against Crankcase

G06904212

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 9: Securing Special Tool (11 9 182) With (11 9 184) On Crankshaft

G09844485

Courtesy of BMW OF NORTH AMERICA, INC.

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)

G09919710

Courtesy of BMW OF NORTH AMERICA, INC.

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: Identifying Special Tools (11 9 181 And 2 212 827)

G09919711

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 12: Tightening Radial Shaft Seal

G06904216

Courtesy of BMW OF NORTH AMERICA, INC.

Remove all special tools.

Assemble engine.