Replacing the rear crankshaft seal

WARNING: Working on 12 V electrical system.
Risk of short circuits! Risk of fire!

Make sure that there is no charger connected to the jump start terminal in the engine compartment.
Detach battery ground lead from battery.
For auxiliary batteries: Detach battery minus cables from all auxiliary batteries.

CAUTION: Heavy component.
Heavy components can lead to injury or damage.

Remove and install heavy components with the aid of another person/other persons.

NOTE: RISK OF DAMAGE
Damage to battery terminal, the safety battery terminal or the intelligent battery sensor (IBS).
Damaged battery terminals can lead to malfunctions or vehicle electrical system faults.

Detach battery terminal from battery pole by carefully shifting to and fro. Do not pry off using a tool.

Preliminary work

Refer to BRING FRONT COMPARTMENT LID IN THE SERVICE POSITION .
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 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 REMOVING REAR UNDERBODY PROTECTION .
Refer to REMOVE THE ACOUSTIC COVER OF THE OIL SUMP .
Refer to REMOVING STARTER MOTOR
Refer to REMOVE THE CONNECTING SUPPORT FROM THE TUNNEL .
Refer to IF INSTALLED: REMOVE THE TORSION STRUT ON THE RIGHT AND LEFT WHERE REQUIRED .
Refer to REMOVE COMPLETE EXHAUST SYSTEM .
Refer to REMOVING THE HEAT SHIELDS .
Refer to REMOVE THE RETAINING PLATES
Refer to REMOVING THE FAN COWL .
Refer to PARTIALLY LOOSENING THE PROP SHAFT
Refer to REMOVE AUTOMATIC TRANSMISSION (ALL-WHEEL DRIVE VEHICLE) (GA8HP51Z) .
Refer to REMOVING FLYWHEEL .

Removing the rear crankshaft seal

Provide a vacuum cleaner.
Drill a hole into the crankshaft seal using a 2.5 mm drill (1).

Courtesy of BMW OF NORTH AMERICA, INC.
Immediately remove the shavings from the crankshaft seal (1) carefully using a vacuum cleaner.

Courtesy of BMW OF NORTH AMERICA, INC.
Screw in the special tool 0 491 454 (23 0 490) into the crankshaft seal.
Drive out the crankshaft seal using the special tool 0491 454 (23 0 490).

Courtesy of BMW OF NORTH AMERICA, INC.
- Installing the rear crankshaft seal
NOTE: TECHNICAL INFORMATION
The radial shaft seal must be installed dry. Do not use motor oil or lubricant.
Install special tool 0496 137 (11 8 815) on the crankshaft.
Pull off crankshaft sealing ring (1) in the arrow direction using special tool 0496 137 (11 8 815) so that crankshaft sealing ring (1) rests all around the timing case cover.
Guide the special tool 0 496 137 (11 8 815) out and remove.

Courtesy of BMW OF NORTH AMERICA, INC.
Secure special tool 0 494 029 (11 9 182) to the crankshaft using special tool 0 494 031 (11 9 184).

Courtesy of BMW OF NORTH AMERICA, INC.
Connect special tool 2 360215 to special tool 0 494 028 (11 9 181) in the arrow direction.

Courtesy of BMW OF NORTH AMERICA, INC.
Position special tools 0 494 028 (11 9 181) and 2 360 215 and bring into contact with the crankshaft seal in connection with special tool 0 494 030 (11 9 183).
Check the freedom of movement between the special tool 2 360 215 and the crankshaft sensor during installation.
Screw in the crankshaft sealing ring up to the stop of the timing case cover using special tool 2 360 215.

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work

Refer to INSTALLING THE FLYWHEEL .
Refer to INSTALLING AUTOMATIC TRANSMISSION (ALL-WHEEL DRIVE VEHICLE) (GA8HP51Z) .
Refer to INSTALLING STARTER MOTOR
Refer to INSTALL THE ACOUSTIC COVER FOR THE OIL SUMP .
Refer to FASTENING THE PROP SHAFT (PARTIALLY REMOVED)
Refer to INSTALL THE RETAINING PLATES .
Refer to INSTALLING THE HEAT SHIELDS
Refer to INSTALLING THE COMPLETE EXHAUST SYSTEM .
Refer to IF INSTALLED: INSTALL THE TORSION STRUT ON THE RIGHT, AND ON THE LEFT WHERE REQUIRED .
Refer to INSTALL THE CONNECTING SUPPORTS ON THE TUNNEL .
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 CHECKING/TOPPING UP THE OIL LEVEL IN THE AUTOMATIC TRANSMISSION .
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 REAR UNDERBODY PROTECTION .
Refer to INSTALL THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
Refer to TAKE HOOD OUT OF THE SERVICE POSITION .