11 14 005 Replacing front crankshaft seal (N20)

WARNING: This page is about a different variant/trim than selected.

Special tools required:

Necessary preliminary tasks:

Remove VIBRATION DAMPER

IMPORTANT: Do not release central bolt.
If the central bolt is released, the sprockets of the timing chain and the oil pump will no longer be non-positively connected to the crankshaft. Intake and exhaust camshafts can turn in relation to crankshaft.

Risk of damage!

Fig 1: Identifying Stop Central Bolt

Screw special tool 11 0 371 to 50 Nm into crankshaft seal.

Screw in spindle 11 0 372 .

Release crankshaft seal from housing.

Repeat the operation several times if necessary.

Order number:83 30 0 496 275

Fig 2: Releasing Crankshaft Seal From Housing

Carefully saw open crankshaft seal (1) at cutting line (2).

Remove crankshaft seal (1) from special tool 11 0 371 .

Fig 3: Identifying Crankshaft Radial Seal And Cutting Line

IMPORTANT: The following text describes installation and sealing between the engine block and crankshaft seal.
The engine block will not be leak proof at the outside of the crankshaft seal if you fail to comply with the individual work steps and the work sequence.

Connect support sleeve (1) at special tool 2212 822 .

Position radial shaft seal (2) carefully in direction of arrow on the special tool 2 212 822 .

Fig 4: Positioning Radial Shaft Seal On Special Tool (2 212 822)

Slide the radial shaft seal (1) all the way home.

Remove supporting sleeve (2).

Fig 5: Removing Supporting Sleeve

Attach special tool 2 212 822 to the crankshaft using 2 screws (1).

Fig 6: Attaching Special Tool (2 212 822) To Crankshaft Using Screws

Align radial shaft seal (1) in parallel with the special tool 11 9 231 for housing separation.

Fig 7: Aligning Radial Shaft Seal In Parallel With Special Tool (11 9 231)

Draw in radial shaft seal with special tool 11 9 231 in conjunction with special tool 11 9 233 until flush.

Fig 8: Inserting Radial Shaft Seal

Assemble engine.