Replacing front crankshaft seal

WARNING: This page is about a different car, the 2023 BMW X5, 2022 BMW X5, 2021 BMW X5, 2020 BMW X5, and 2019 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: RISK OF DAMAGE
Careless handling of tools and sharp-edged components. Scratches, surface damage .

Protect working area.
Handle tools and components carefully.

NOTE: TECHNICAL INFORMATION
When the engine is stopped after the completion of trip, it may be necessary to run the electric fan. In rare cases, operation of the electric fan can last up to 11 min. This protects the components. In this case, replacing the electric fan will not remedy the problem!

Preliminary work

Refer to REMOVING THE TOP LEFT COVER IN THE ENGINE COMPARTMENT , and REMOVING THE TOP RIGHT COVER IN THE ENGINE COMPARTMENT .
Refer to REMOVING UPPER CROSS CONNECTION .
Refer to REMOVING THE TENSION STRUT AT THE SHOCK TOWER ON THE LEFT AND RIGHT .
Refer to REMOVING THE REAR TOP CROSS CONNECTION .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING SUSPENSION STRUT BRACE .
Refer to REMOVING RIGHT SUSPENSION STRUT BRACE .
Refer to REMOVING INTAKE SILENCER HOUSING .
Refer to REMOVING THE LEFT UNFILTERED-AIR DUCT .
Refer to REMOVING FAN COWL .
Refer to PARTIALLY DETACH THE COOLANT EXPANSION TANK FOR THE LOW-TEMPERATURE COOLANT CIRCUIT .
Refer to REMOVING DRIVE BELT .
Refer to REMOVING THE BELT TENSIONER .
Refer to REMOVING THE BELT PULLEY ON THE TORSIONAL VIBRATION DAMPER .
Refer to REMOVING THE VIBRATION DAMPER .

Make sure that the grooves of the rotational arms (2) of the special tool 0 493 923 (11 9 410) for insertion on the radial shaft seal (1) are positioned at a 90° angle to the spindle (3).
Insert the special tool.

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Make sure that the grooves of the rotational arms (2) on the special tool 0 493 923 (11 9 410) for pulling out the radial shaft seal (1) face the spindle (3).
Turn the spindle clockwise (arrow direction).
Temperature sensor Protect the special tool from falling.
Remove the radial shaft seal (1).
Clean the contact surface of the crankshaft seal (1).

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Replace radial shaft seal (1) at front.
Parts: Radial shaft seal
Position the radial shaft seal (1).
Set and join the special tool 2 0 493 924 (11 9 420) with the central bolt (3).
Use the special tool (2) 0 493 924 (11 9 420) and the central bolt (3) to screw in the radial shaft seal (1) flush.

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Unscrew the central bolt (2) counter-clockwise.
Remove the special tool (1) 0 493 924 (11 9 420) .

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The Woodruff key (1) must be in the crankshaft (3) and secure the sprocket wheel (2) against twisting.
If there is no Woodruff key (1), it must be replaced and the valve timings must be set subsequently .

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Follow-up work

Refer to INSTALLING THE VIBRATION DAMPER .
Refer to INSTALLING THE BELT PULLEY ON THE TORSIONAL VIBRATION DAMPER .
Refer to INSTALLING THE BELT TENSIONER .
Refer to INSTALLING DRIVE BELT .
Refer to INSTALLING THE COOLANT EXPANSION TANK FOR THE LOW-TEMPERATURE COOLANT CIRCUIT .
Refer to INSTALLING FAN COWL .
Refer to INSTALLING THE LEFT UNFILTERED-AIR DUCT .
Refer to INSTALLING INTAKE FILTER HOUSING .
Refer to INSTALLING THE RIGHT STRUT BRACE .
Refer to INSTALLING THE STRUT BRACE .
Refer to INSTALLING ACOUSTIC COVER .
Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
Refer to INSTALLING TENSION STRUT ON LEFT AND RIGHT SHOCK TOWER .
Refer to INSTALLING UPPER CROSS CONNECTION .
Refer to INSTALLING THE COVER IN THE ENGINE COMPARTMENT AT TOP LEFT , and INSTALLING THE COVER IN THE ENGINE COMPARTMENT ON THE TOP RIGHT .