Special tools required:

WARNING: This page is about a different car, the 2003 BMW 525i, 2002 BMW 525i, and 2001 BMW 525i. However, it is still accessible from the selected car via links, so may be relevant.

11 2 380
11 2 383
11 2 385
11 3 280

NOTE: This repair instruction is valid for the following engines:

M50 / M52 / M52TU / M54 / M56
S52

Remove vibration damper. See 11 23 010 Removing and installing or replacing vibration damper (M52TU / M54 / M56)

NOTE: Version where vibration damper and hub are two parts:

Remove hub for vibration damper.

Fit special tool 11 2 383 to crankshaft.

Fig 1: Fitting Special Tool 11 2 383 To Crankshaft

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Fit special tool 11 2 385 to crankshaft.

Align groove of special tool 11 2 385 to featherkey of crankshaft.

NOTE: Special tool 11 2 385 centers special tool 11 2 380.

Fig 2: Aligning Groove Of Special Tool 11 2 385 To Featherkey Of Crankshaft

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Screw in special tool 11 2 380 until it has made firm contact with radial seal.

Remove radial seal by tightening screw on special tool.

Fig 3: Screwing In Special Tool 11 2 380

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Installation:

Coat sealing lips of new radial sealing ring with oil.

Using special tool 11 3 280 and centering screw, install new radial seal flush with timing case cover.

Fig 4: Installing Radial Seal Flush With Timing Case Cover

Courtesy of BMW OF NORTH AMERICA, INC.