11 14 005 Replacing front crankshaft seal (B48, B46)

Special tools required: 

• 2 298 505
• 11 8 801
• 11 8 802
• 11 8 803
• 11 8 804

Necessary preliminary tasks: 

• Remove VIBRATION DAMPER 

Removal: 

Drive in the crankshaft seal (1) by approx. 1 cm in the marked area by using a punch.

Fig 1: Driving Crankshaft Seal

Courtesy of BMW OF NORTH AMERICA, INC.

Use special tool 2 298 505 to lift out the crankshaft seal (1).

Do not scratch sealing surface against engine block.

Fig 2: Lifting Out Crankshaft Seal Using Special Tool (2 298 505)

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Clean special tool 11 8 801 and coat with fresh engine oil.

Fasten special tool 11 8 801 with 11 8 802 on the crankshaft.

Fig 3: Fastening Special Tool (11 8 801) On Crankshaft

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Attention  !

Touching the sealing lip (on the inside) of the crankshaft seal is not permitted.

Coating the outside of the crankshaft seal with oil is not permitted.

Push the crankshaft seal (1), carefully and precisely, with a rotational movement  onto the special tool 11 8 801 until it lies against the crankcase.

Fig 4: Pushing Crankshaft Seal With Special Tool (11 8 801)

Courtesy of BMW OF NORTH AMERICA, INC.

Draw in the crankshaft seal using special tool 11 8 803 and 11 8 804 .

Screw in special tool 11 8 803 until it is flush with the crankcase.

Fig 5: Drawing In Crankshaft Seal Using Special Tool (11 8 803) And (11 8 804)

Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work: 

• Check engine for leak tightness