11 14 005 Replacing front crankshaft seal (N18)

Special tools required: 

• 11 9 601
• 11 9 602
• 11 9 603

Necessary preliminary work: 

• Remove the A/C LINE from the air conditioning compressor.
• Remove VIBRATION DAMPER .

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. The camshafts can twist in relation to the crankshaft (risk of damage!)  .

Fig 1: Caution For Central Bolt

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Drive PTFE ring inwards with a punch (1) until PTFE ring tilts outwards at bottom.

Fig 2: Installing PTFE Ring Using Drift

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Use screws (1) to secure the special tool 11 9 601 on the crankshaft to 15 Nm.

Fig 3: Attaching Special Tool (11 9 601) To Crankshaft Using Bolts

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Installation note: 

Lightly oil the special tool 11 9 601 .

Position the PTFE ring (2) with the support disc (1) on special tool 11 9 601 .

Push PTFE ring (2) over support disc (1) in direction of arrow up to crankcase.

Fig 4: Pushing PTFE Ring Over Supporting Ring

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Remove support disc from the special tool 11 9 601 .

Fig 5: Identifying Special Tool (11 9 601) And Supporting Ring

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Use the special tool 11 9 602 together with special tool 11 9 603 to draw the PTFE ring in flush.

Fig 6: Installing PTFE Ring Using Special Tool (11 9 602)

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Assemble engine.