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Home >> BMW >> 2014 >> M6 2D Convertible, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 1122 (Engine - Oil Pan, Crankshaft Seal, Timing Case Cover, Crankcase Ventilation System - Repair) >> Crankshaft Seal, Timing Case Cover >> N20 Engine >> 11 14 151 Replacing crankshaft seal on transmission side (N20)

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

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Special tools required: 

Necessary preliminary tasks: 

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
G09919701Courtesy of BMW OF NORTH AMERICA, INC.

Release screw on pulse sensor (1).

Slide PULSE SENSOR (2) upwards.

Fig 2: Identifying Pulse Sensor And Screw
G09919702Courtesy of BMW OF NORTH AMERICA, INC.
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
G09919703Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Remove metal shavings from the radial shaft seal (1).
Fig 4: Removing Metal Shavings After Drilling
G09919704Courtesy 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 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
G09919705Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 6: Identifying Radial Shaft Seal On Special Tool 11 8 220
G09919706Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 7: Positioning Radial Shaft Seal On Crankshaft
G09919707Courtesy 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: Identifying Radial Shaft Seal Parallel Up Against Crankcase
G09919708Courtesy 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 Tools On Crankshaft
G09919709Courtesy 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
G09919710Courtesy 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: Pulling On Radial Shaft Seal Using Special Tools
G09919711Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 12: Screwing On Radial Shaft Seal To Limit Position
G09919712Courtesy of BMW OF NORTH AMERICA, INC.

Remove all special tools.

Assemble engine.

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