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 DEACTIVATING ELECTRICAL SYSTEM .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING THE SEAL FOR THE HOOD REAR .
Refer to REMOVING ACOUSTIC COVER AT REAR .
Refer to REMOVING THE FRONT HOOD SEAL .
Refer to REMOVING THE COVER FOR THE CENTER ENGINE COMPARTMENT .
Refer to REMOVING UPPER CROSS CONNECTION .
Refer to REMOVING THE REAR TOP CROSS CONNECTION .
Refer to REMOVING THE FAN COWL .
Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
Refer to REMOVING THRUST FIELD .
Refer to REMOVING THE CENTER UNDERBODY PROTECTION .
Refer to REMOVING REAR UNDERBODY PROTECTION .
Refer to IF INSTALLED: PARTIALLY RELEASING THE ENGINE OIL COOLER .
Refer to REMOVING TANK COVER ON LEFT AND RIGHT .
Refer to REMOVING STIFFENING STRUT .
Refer to REMOVING COMPLETE EXHAUST SYSTEM .
Refer to REMOVING STARTER MOTOR .
Refer to REMOVING THE HEAT SHIELDS .
Refer to PARTIALLY LOOSENING THE PROP SHAFT .
Refer to RELEASING THE FRONT PROP SHAFT ON THE FRONT AXLE TRANSMISSION .
Refer to REMOVING THE RETAINING PLATES .
Refer to DISCONNECTING HYDRAULIC LINES ON THE TRANSMISSION .
Refer to RELEASING THE TRANSMISSION BEARING SUPPORT .
Refer to REMOVING TRANSMISSION CROSS-MEMBER .
Refer to REMOVING EXHAUST SYSTEM HOLDER .
Refer to REMOVING 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 0 491 454 (23 0 490) .

Courtesy of BMW OF NORTH AMERICA, INC.
Replace crankshaft seal.
Parts: Crankshaft seal

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 0 496 137 (11 8 815) on the crankshaft.
Pull off crankshaft sealing ring (1) in the arrow direction using special tool 0 496 137 (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 2 360 215 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 THE EXHAUST BRACKET .
Refer to INSTALLING TRANSMISSION CROSS MEMBER .
Refer to INSTALLING THE TRANSMISSION BEARING SUPPORT .
Refer to SECURING THE HYDRAULIC LINES TO THE TRANSMISSION .
Refer to INSTALLING THE RETAINING PLATES .
Refer to INSTALLING FRONT PROPELLER SHAFT AT THE FRONT AXLE TRANSMISSION .
Refer to FASTENING THE PROP SHAFT (PARTIALLY REMOVED) .
Refer to INSTALLING THE HEAT SHIELD .
Refer to INSTALLING THE COMPLETE EXHAUST SYSTEM .
Refer to INSTALLING REINFORCEMENT STRUT .
Refer to INSTALLING TANK COVER ON LEFT AND RIGHT .
Refer to INSTALLING STARTER MOTOR .
Refer to IF INSTALLED: SECURING THE ENGINE OIL COOLER .
Refer to INSTALLING FAN COWL .
Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
Refer to INSTALLING UPPER CROSS CONNECTION .
Refer to INSTALLING THE COVER FOR CENTRAL ENGINE COMPARTMENT .
Refer to INSTALLING THE FRONT HOOD SEAL .
Refer to INSTALLING ACOUSTIC COVER AT REAR .
Refer to INSTALLING THE REAR HOOD SEAL .
Refer to INSTALLING ACOUSTIC COVER .
Refer to ACTIVATING ELECTRICAL SYSTEM .
Refer to CHECKING/TOPPING UP THE OIL LEVEL IN THE AUTOMATIC TRANSMISSION .
Refer to INSTALLING UNDERBODY PROTECTION AT REAR .
Refer to INSTALLING THE CENTER UNDERBODY PROTECTION .
Refer to INSTALLING THE STIFFENING PLATE .
Refer to INSTALLING FRONT UNDERBODY PROTECTION .