23 12 059 Replacing Radial Shaft Seal For Output Flange (GS6-53BZ/DZ G-Transmission)

WARNING: This page is about a different car, the 2007 BMW 550i and 2006 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

IMPORTANT:

After completion of work, check TRANSMISSION OIL LEVEL

Use only approved transmission oil.

Failure to comply with this instruction will result in serious damage to the transmission.

Necessary preliminary tasks:

Unflange propeller shaft from transmission and tie up to one side.
Tasks are described in Removing PROPELLER SHAFT

Brace output flange with special tool 23 0 020 .

Release collar nut with special tool 23 2 320 .

Release E90,91 M57T2, E60S85 with special tool 23 0 200 .

Installation:

Mark flange with thermo pin and heat to min. 80°- 100°.

WARNING:

Scalding hazard! Fit flange wearing suitable protective gloves only!

IMPORTANT:

Do not drive on flange.

Secure collar nut with Loctite 243.

Loctite 243: BMW Parts Service.
Tightening torque:23 21 1AZ . See TRANSMISSION SHAFTS for specs.

Fig 1: Identifying Special Tool (23 2 320) On Collar Nut
Courtesy of BMW OF NORTH AMERICA, INC.

Detach output flange (1) with special tool 33 1 150 and adapter plate 33 1 154 from output shaft.

Fig 2: Identifying Special Tool (33 1 154 And 33 1 150) On Output Flange

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw on special tool 23 3 210 .

Slide special tool 23 3 210 over output shaft and screw into sealing ring firmly.

Fig 3: Identifying Special Tool (23 3 210 And 23 3 161)

Courtesy of BMW OF NORTH AMERICA, INC.

Insert screw into special tool 23 3 210 again and continue turning until sealing ring is pulled out of transmission housing.

If necessary, remove ring spring of sealing ring.

Fig 4: Inserting Screw Into Special Tool (23 3 210 And 23 3 161)

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Coat sealing lips of new radial seal with gear oil.

Drive in radial seal as far as it will go with special tool 23 3 230 and plastic hammer.

Fig 5: Identifying Special Tool (23 3 230, 23 3 162, 23 4110)

Courtesy of BMW OF NORTH AMERICA, INC.