Replacing the front 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.

WARNING: Hot surfaces.
Risk of burning!

Perform all work only on components that have cooled down.

Preliminary work

Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
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 STARTER MOTOR .
Refer to REMOVING THE COVER ON LEFT AND RIGHT IN THE ENGINE COMPARTMENT AT THE TOP .
Refer to REMOVE THE LEFT AND RIGHT FRONT-END STRUT
Refer to REMOVE FRONT CROSS CONNECTION .
Refer to REMOVE THE REAR TOP CROSS CONNECTION .
Refer to REMOVING THE FAN COWL .
Refer to REMOVING THE DRIVE BELT FOR ALTERNATOR .
Refer to REMOVING THE VIBRATION DAMPER .

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

Courtesy of BMW OF NORTH AMERICA, INC.
NOTE:
RISK OF DAMAGE
Careless handling of tools and sharp-edged components.
Scratches, surface damage.
- Protect working area.
- Handle tools and components carefully.
Courtesy of BMW OF NORTH AMERICA, INC.
Carefully lever out and remove the crankshaft seal (1) with the special tool 2 298 505.
Clean sealing surface (1).

Courtesy of BMW OF NORTH AMERICA, INC.
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.
Position the special tool 0 496 128 (11 8 801) from the set of special tools 0 496 127 (11 8 800) on the crankshaft and screw in.

Courtesy of BMW OF NORTH AMERICA, INC.
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.
Courtesy of BMW OF NORTH AMERICA, INC.
Replace crankshaft seal (1).
Parts: Crankshaft seal
Carefully slide the crankshaft seal (1) in a rotational movement onto the special tool 0 496 128 (11 8 801) from the set of special tools 0 496 127 (11 8 800) until the crankshaft seal rests on the crankcase.
Position the special tool 0 496 130 (11 8 803) from the set of special tools 0 496 127 (11 8 800) and screw it hand-tight using the nut.
Ensure that the crankshaft seal shifts in evenly.

Courtesy of BMW OF NORTH AMERICA, INC.
Screw in the special tool (sleeve) 0 496 130 (11 8 803) from the set of special tools 0 496 127 (11 8 800) using the tool (1) until the sleeve lies flush on the crankcase.

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work

Refer to INSTALLING THE VIBRATION DAMPER .
Refer to INSTALLING THE DRIVE BELT FOR ALTERNATOR .
Refer to INSTALL FAN COWL .
Refer to INSTALL THE REAR TOP CROSS CONNECTION .
Refer to INSTALL FRONT CROSS CONNECTION .
Refer to INSTALLING FRONT-END STRUT ON LEFT AND RIGHT .
Refer to INSTALLING THE COVER ON THE LEFT AND RIGHT IN THE ENGINE COMPARTMENT AT THE TOP
Refer to INSTALLING STARTER MOTOR .
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 CONNECTING NEGATIVE BATTERY CABLE .