Replacing front crankshaft seal

Preliminary work

Refer to DEACTIVATING THE 48 V ELECTRICAL SYSTEM .
Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING THE COVER ON LEFT AND RIGHT IN THE ENGINE COMPARTMENT AT THE TOP .
Refer to REMOVE BOTH FRONT-END STRUTS .
Refer to REMOVE FRONT CROSS CONNECTION .
Refer to REMOVE THE REAR TOP CROSS CONNECTION .
Refer to REMOVING THE FAN COWL .
Refer to REMOVING THE INTAKE FILTER HOUSING (TENSION STRUT ON SHOCK TOWER REMOVED) .
Refer to REMOVE TOP CLEAN AIR PIPE .
Refer to REMOVE BOTTOM CLEAN AIR PIPE .
Refer to REMOVE CHARGE AIR LINE .
Refer to REMOVING THE DRIVE BELT FOR THE STARTER MOTOR GENERATOR .
Refer to REMOVE THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
Refer to REMOVING THE UNDERBODY PROTECTION OF THE STEERING GEAR AND THRUST FIELD RESPECTIVELY .
Refer to REMOVING THE STIFFENING PLATE .
Refer to REMOVE THE ACOUSTIC COVER OF THE OIL SUMP .
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 sealing ring (1) with the special tool 2 298 505.
Make sure that the sealing surface on the crankcase is not scratched.

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- Installing the front crankshaft seal
Prepare special tool 0 496 130 (11 8 803).

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Clean the special tool 0 496 128 (11 8 801) from the set of special tools 0 496 127 (11 8 800) and coat it with motor oil.
Secure special tool 0 496 128 (11 8 801) to the crankshaft using special tool 0 496 129 (11 8 802) from the set of special tools 0 496 127 (11 8 800).

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NOTE:
RISK OF DAMAGE
Radial shaft seal damage.
Taping the sealing lip (inner) and applying oil to the radial shaft seal will lead to its destruction.
- Do not tap the sealing lip (inner) of the radial shaft seal.
- Do not apply oil to the radial shaft seal.
- Install the radial shaft seal dry.
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Carefully slide the crankshaft sealing ring (1) straight in a rotational movement onto the special tool 0 496 128 (11 8 801) from the set of special tools 0496 127 (11 8800) until the crankshaft sealing ring (1) is positioned flush against the crankcase.
Mount the special tool 0496 130 (11 8 803) on special tool 0 496 128 (11 8 801) of the set of special tools 0 496 127 (11 8 800) in arrow direction.

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Screw in the special tool (sleeve) 0496 130 (11 8 803) using the special tool 0 496 131 (11 8 804) from the set of special tools 0 496 127 (11 8 800) and a suitable tool until the sleeve is positioned flush against the crankcase (1).

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Release the special tool 0 496 131 (11 8 804) and remove.

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Feed out and remove the special tool 0 496 130 (11 8 803) on the special tool 0 496 128 (11 8801) of the set of special tools 0 496 127 (11 8 800) in arrow direction.

Courtesy of BMW OF NORTH AMERICA, INC.
Release the special tool 0 496 129 (11 8 802).
Feed out and remove the special tool 0 496 128 (11 8 801) 0 496 129 (11 8 802 ) on the crankshaft.

Courtesy of BMW OF NORTH AMERICA, INC.
Check the crankshaft sealing ring (1) for correct installation on the crankcase (2).

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work

Refer to INSTALLING THE VIBRATION DAMPER .
Refer to INSTALLING STARTER MOTOR
Refer to INSTALL THE ACOUSTIC COVER FOR THE OIL SUMP .
Refer to INSTALLING THE DRIVE BELT FOR THE STARTER MOTOR GENERATOR .
Refer to INSTALL CHARGE AIR LINE .
Refer to INSTALL BOTTOM CLEAN AIR PIPE .
Refer to INSTALL CLEAN AIR PIPE, TOP .
Refer to INSTALLING THE INTAKE FILTER HOUSING (TENSION STRUT REMOVED ON SHOCK TOWER) .
Refer to INSTALL FAN COWL .
Refer to INSTALL THE REAR TOP CROSS CONNECTION .
Refer to INSTALL FRONT CROSS CONNECTION .
Refer to INSTALLING BOTH FRONT-END STRUTS
Refer to INSTALLING THE COVER ON THE LEFT AND RIGHT IN THE ENGINE COMPARTMENT AT THE TOP
Refer to CONNECTING NEGATIVE BATTERY CABLE .
Refer to ACTIVATING THE 48 V ELECTRICAL SYSTEM .
Refer to INSTALLING ACOUSTIC COVER .
Refer to INSTALL THE THRUST FIELD .
Refer to INSTALLING THE UNDERBODY PROTECTION OF THE STEERING GEAR OR THE FRONT THRUST FIELD .
Refer to INSTALL THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
Refer to CHECK ENGINE OIL LEVEL .