Replace the crankshaft seal

WARNING: Car may slip off the vehicle hoist where components are supported
Danger! Immobilization period-threatening injuries!

Secure the vehicle hoist against lowering and lifting.
Make sure that the vehicle does not lift off the mounting plates on the vehicle lift.

WARNING: Car may slip off the vehicle hoist if the weight is distributed unevenly
Danger! Immobilization period-threatening injuries!

Ensure there is a specific weight compensation on the car.

WARNING: Vehicle may slip off the vehicle hoist if the vehicle hoist is handled incorrectly
Danger! Immobilization period-threatening injuries!

Observe safety instructions on raising the vehicle using a vehicle hoist.
For additional information see: 00... RAISE THE VEHICLE USING A VEHICLE LIFT

Preliminary work

Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
Refer to REMOVING INTAKE PORT .
Refer to REMOVING INTAKE SILENCER HOUSING .
Refer to REMOVING CROSS CONNECTION .
Refer to REMOVING FAN COWL WITH ELECTRIC FAN .
Refer to DRAINING THE COOLANT FROM THE COOLANT CIRCUIT .
Refer to REMOVING LEFT AND RIGHT WIPER ARM .
Refer to REMOVING REAR HOOD SEAL .
Refer to REMOVING LEFT WINDSHIELD PANEL COVER .
Refer to REMOVING RIGHT WINDSHIELD PANEL COVER .
Refer to REMOVING THE SECOND BULKHEAD AT TOP .
Refer to REMOVING BATTERY COVER .
Refer to REMOVING BATTERY .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING CLEAN AIR PIPE .
Refer to BRINGING THE ENGINE TO THE INSTALLATION POSITION .
Refer to DETACHING STEERING SHAFT AT BOTTOM FROM STEERING GEAR .
Refer to MOUNTING THE COOLANT RADIATOR ON THE LEFT AND RIGHT .
Refer to REMOVING THE FRONT LEFT AND RIGHT WHEELS .
Refer to IF INSTALLED: REMOVING REAR UNDERBODY PROTECTION .
Refer to REMOVING THE FRONT LEFT AND RIGHT WHEEL ARCH COVER .
Refer to DETACHING THE CABLE FOR THE RIDE HEIGHT SENSOR .
Refer to RELEASING THE LEFT AND RIGHT ANTI-ROLL BAR FROM THE ANTI-ROLL BAR LINK .
Refer to DETACHING RUBBER MOUNT FROM FRONT AXLE SUPPORT .
Refer to DISCONNECTING PLUG CONNECTIONS FROM STEERING GEAR .
Refer to DISCONNECTING THE PURGE AIR LINE .
Refer to RELEASING THE MOUNTED PARTS FROM THE FRONT AXLE SUPPORT .
Refer to COMPLETELY RELEASING AND REMOVING THE FRONT AXLE .
Refer to REMOVING STARTER MOTOR .
Refer to REMOVING LEFT OUTPUT SHAFT AT TRANSMISSION END AND HANGING UP .
Refer to REMOVING RIGHT OUTPUT SHAFT AT TRANSMISSION END AND HANGING UP .
Refer to REMOVING THE LEFT RADIAL SHAFT SEAL ON THE DIFFERENTIAL (7DCT300) .
Refer to REMOVING THE RIGHT RADIAL SHAFT SEAL ON THE DIFFERENTIAL (7DCT300) .
Refer to REMOVING THE DOUBLE-CLUTCH TRANSMISSION (DCT) .
Refer to REMOVING FLYWHEEL (DOUBLE-CLUTCH TRANSMISSION) .

Removing the rear crankshaft seal

Drill a hole (arrow) in the crankshaft sealing ring.

NOTE: Use the drill (1) with a maximum diameter of 2.5 mm.

Remove the shavings immediately with the vacuum cleaner. Do not remove shavings with compressed air!

Courtesy of BMW OF NORTH AMERICA, INC.
Screw in special tool 0 491 454 (23 0 490) in the arrow direction.
Drive out the crankshaft sealing ring in the arrow direction using an impact weight.

Courtesy of BMW OF NORTH AMERICA, INC.

Replace crankshaft seal.
Parts: Crankshaft seal

Installing the rear crankshaft seal

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.

Replace the crankshaft sealing ring (1) .
Parts: Crankshaft seal
Preassemble special tool 0 496 137 (11 8 815) on crankshaft.
Carefully slip the crankshaft sealing ring (1) off in the arrow direction with a rotational movement using special tool 0 496 137 (11 8 815) until the crankshaft sealing ring (1) is on and parallel to the timing case cover.

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 0 493 881 (11 9 180) in the arrow direction

Courtesy of BMW OF NORTH AMERICA, INC.
Pull in the crankshaft sealing ring using special tools 0 494 028 (11 9 181) and 2 360 215 in combination with special tool 0 494 030 (11 9 183) .

Courtesy of BMW OF NORTH AMERICA, INC.
Tighten the crankshaft seal ring using the tool (1) till reaching the stop.

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work

Refer to INSTALLING FLYWHEEL (DCT) .
Refer to INSTALLING THE DOUBLE-CLUTCH TRANSMISSION (DCT) .
Refer to INSTALLING THE RIGHT RADIAL SHAFT SEAL ON THE DIFFERENTIAL (7DCT300) .
Refer to INSTALLING THE LEFT RADIAL SHAFT SEAL ON THE DIFFERENTIAL (7DCT300) .
Refer to INSTALLING THE LEFT OUTPUT SHAFT AT THE TRANSMISSION END .
Refer to INSTALLING RIGHT OUTPUT SHAFT AT TRANSMISSION END .
Refer to INSTALLING STARTER MOTOR .
Refer to INSTALLING AND SECURING COMPLETE FRONT AXLE .
Refer to SECURING MOUNTED PARTS ON THE FRONT AXLE SUPPORT .
Refer to CONNECTING PURGE AIR LINE .
Refer to CONNECTING CONNECTOR ON STEERING GEAR .
Refer to FASTENING THE RUBBER MOUNT ON THE FRONT AXLE SUPPORT .
Refer to SECURING THE ANTI-ROLL BAR ON THE LEFT AND RIGHT ON THE ANTI-ROLL BAR LINK .
Refer to FASTENING THE CABLE FOR THE RIDE HEIGHT SENSOR .
Refer to INSTALLING WHEEL ARCH COVER AT FRONT LEFT AND RIGHT .
Refer to IF INSTALLED: INSTALLING UNDERBODY PROTECTION AT REAR .
Refer to INSTALLING THE FRONT LEFT AND RIGHT WHEELS .
Refer to REMOVING THE MOUNTING FOR THE COOLANT RADIATOR ON THE LEFT AND RIGHT .
Refer to SECURING THE STEERING SHAFT AT THE BOTTOM ON THE STEERING GEAR .
Refer to TAKING ENGINE OUT OF INSTALLATION ORIENTATION .
Refer to INSTALLING CLEAN AIR PIPE .
Refer to INSTALLING ACOUSTIC COVER .
Refer to INSTALLING THE BATTERY .
Refer to INSTALLING THE BATTERY COVER .
Refer to CONNECTING COOLANT LINE .
Refer to INSTALLING SECOND UPPER BULKHEAD .
Refer to INSTALLING THE RIGHT WINDSHIELD PANEL COVER .
Refer to INSTALLING THE LEFT WINDSHIELD PANEL COVER .
Refer to INSTALLING THE REAR HOOD SEAL .
Refer to INSTALLING LEFT AND RIGHT WIPER ARM .
Refer to INSTALLING FAN COWL WITH ELECTRIC FAN .
Refer to INSTALLING CROSS CONNECTION .
Refer to INSTALLING INTAKE SILENCER HOUSING .
Refer to INSTALLING INTAKE PORT .
Refer to FILLING THE COOLANT CIRCUIT WITH THE VACUUM FILLING EQUIPMENT .
Refer to VENTING THE COOLING CIRCUIT .
Refer to CHECKING OIL LEVEL/REPLENISH OIL IN DOUBLE-CLUTCH TRANSMISSION (DCT) (7DCT300) .
Refer to INSTALLING FRONT UNDERBODY PROTECTION .
Refer to ENCODING/PROGRAMING CONTROL UNIT(S) .