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Home >> BMW >> 2018 >> 340i xDrive Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 271 (Engine - Repair (F30, 4-CYL RWD)) >> 11 14 Housing Cover >> 11 14 005 Replacing front crankshaft seal (B48B)

11 14 005 Replacing front crankshaft seal (B48B)

WARNING: This page is about a different car, the 2018 BMW 330i and 2017 BMW 330i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required: 

Necessary preliminary tasks: 

NOTE: Illustration shows B58 engine.

Removal: 

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

G11644920Courtesy 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.

G11644921Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Attention! 

The radial shaft seal must be installed dry.

Do not use engine oil or lubricant.

Clean special tool 11 8 801  from the set of special tools 11 8 800  and coat with fresh engine oil.

Secure special tool 11 8 801  using special tool 11 8 802  from the set of special tools 11 8 800  to the crankshaft.

G12700838Courtesy of BMW OF NORTH AMERICA, INC.

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.

Carefully slide the crankshaft seal (1) straight and in a rotational movement  onto special tool 11 8 801  from the set of special tools 11 8 800  until it is flush with the crankcase.

G12700839Courtesy of BMW OF NORTH AMERICA, INC.

Position the sleeve 11 8 803  from the set of special tools 11 8 800  and screw it hand-tight using the nut.

G12700840Courtesy of BMW OF NORTH AMERICA, INC.

Screw in the sleeve 11 8 803  from the set of special tools 11 8 800  into the tool (1) until it is flush in contact with the crankcase.

G12700841Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work: