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Home >> BMW >> 2012 >> 740Li >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine - Repair (N54, 2011-2012) >> Housing Cover >> 11 14 151 Replacing radial crankshaft seal on transmission side (N54) (from production date 1/1/2009)

11 14 151 Replacing radial crankshaft seal on transmission side (N54) (from production date 1/1/2009)

Special tools required: 

Necessary preliminary tasks: 

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

Remove magnet wheel (1) from crankshaft.

Fig 1: Identifying Magnet Wheel
G09844477Courtesy of BMW OF NORTH AMERICA, INC.

Release screw on pulse sensor (1).

Slide pulse sensor (2) upwards.

Fig 2: Identifying Pulse Sensor And Screw
G09844478Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Drill size maximum 2.5 millimeters.
Remove debris immediately.
Fig 3: Drilling Hole In Radial Shaft Seal
G09844479Courtesy of BMW OF NORTH AMERICA, INC.

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

IMPORTANT: Immediately carefully remove debris on the radial shaft seal (1).
Fig 4: Identifying Radial Shaft Seal
G09844480Courtesy 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.

IMPORTANT: Immediately carefully remove residual debris.
Fig 5: Driving Out Radial Shaft Seal With Impact Weight
G09844481Courtesy 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)
G06904210Courtesy 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 On Crankshaft Using Special Tool (11 8 220)
G06904211Courtesy 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
G06904212Courtesy 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
G09844485Courtesy 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 8 181
G06904214Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 11: Pulling-In Radial Shaft Seal With Special Tools (11 9 181) And (11 9 185)
G06904215Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 12: Screwing On Radial Shaft Seal Using Special Tool 11 9 183
G06904216Courtesy of BMW OF NORTH AMERICA, INC.

Remove all special tools.

Assemble engine.