Replacing the front crankshaft seal

NOTE: DANGER
High-voltage system.
The high-voltage system operates on the basis of hazardous, electrical voltage and high currents. Danger to life through electric shock!

All work on the high-voltage system may only be carried out by specially trained and technically experienced personnel.
For additional information see:
SAFETY INFORMATION ON HANDLING HYBRID CARS .
For additional information see:
NOTES ON REPAIR OF HIGH-VOLTAGE BATTERY UNIT .

WARNING: Hot surfaces.
Risk of burning!

Perform all work only on components that have cooled down.

Preliminary work

Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVE RESONATOR .
Refer to REMOVING CLEAN AIR PIPE .
Refer to REMOVE CHARGE AIR LINE .
Refer to REMOVING THE ACOUSTIC COVER FOR THE ENGINE AT THE FRONT .
Refer to REMOVING THE DRIVE BELT FOR COOLANT PUMP .
Refer to REMOVE THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
Refer to REMOVING THE UNDERBODY PROTECTION OF THE STEERING GEAR AND FRONT STIFFENING PLATE RESPECTIVELY .
Refer to REMOVING REAR STIFFENING PLATE .
Refer to REMOVING STARTER MOTOR .
Refer to REMOVING THE VIBRATION DAMPER .

Removing the front crankshaft seal

Drive in the crankshaft seal (1) in the marked area with a punch to approx. 1 cm deep.

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Lever out the crankshaft seal (1) with a suitable tool.
Make sure that the sealing surface on the engine block is not scratched.

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Installing the front crankshaft seal
If required, cut special tool 0496 130 (11 8 803) from the set of special tools 0496 127 (11 8 800) using a suitable tool as shown.
Dimension (X) = 16 mm

Dimension (Y) = 31 mm

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Clean the special tool 0496 128 (11 8 801) from the set of special tools 0496 127 (11 8 800) and coat it with fresh engine oil.
Secure special tool 0496 128 (11 8 801) using special tool 0496 129 (11 8 802) from the set of special tools 0496 127 (11 8 800) to the crankshaft.

Courtesy of BMW OF NORTH AMERICA, INC.
NOTE:
RISK OF DAMAGE
Radial shaft seal damage.
Touching the sealing lip (inner) and applying oil to the radial shaft seal will lead to its destruction.
- Do not touch the sealing lip (inner) of the radial shaft seal.
- Do not apply oil to the radial shaft seal.
- Install the radial shaft seal dry.
Courtesy of BMW OF NORTH AMERICA, INC.
Carefully slide the crankshaft seal (1) straight in a rotational movement onto the special tool 0496 128 (11 8 801) from the set of special tools 0496 127 (11 8 800) until the crankshaft seal is positioned flush against the crankcase.
Mount special tool 0496 130 (11 8 803) onto special tool 0496 128 (11 8 801) of the set of special tools 496 127 (11 8 800).

Courtesy of BMW OF NORTH AMERICA, INC.
Screw in special tool (sleeve) 0496 130 (11 8 803) using the special tool 0496 131 (11 8 804) from the set of special tools 0496 127 (11 8 800) and a suitable tool until the sleeve is positioned flush against the crankcase.

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up Work

Refer to INSTALLING THE VIBRATION DAMPER .
Refer to INSTALLING STARTER MOTOR .
Refer to INSTALLING THE REAR STIFFENING PLATE .
Refer to INSTALLING THE UNDERBODY PROTECTION OF THE STEERING GEAR OR THE FRONT STIFFENING PLATE .
Refer to INSTALL THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
Refer to INSTALLING THE DRIVE BELT FOR THE COOLANT PUMP .
Refer to INSTALL THE ACOUSTIC COVER FOR THE ENGINE AT THE FRONT .
Refer to INSTALL CHARGE AIR LINE .
Refer to INSTALLING CLEAN AIR PIPE .
Refer to INSTALL RESONATOR .
Refer to INSTALL ACOUSTIC COVER .