Replacing output flange shaft seal (GS7D36SG)

Special tools required:

23 0 020
23 0 410
23 2 320
24 2 351
24 2 352
24 2 353
33 1 150
33 1 154

IMPORTANT: It is essential to adhere to conditions of absolute cleanliness.
Any dirty parts must be cleaned before the hydraulic cap is loosened.
After completion of repair work, check TRANSMISSION OIL LEVEL .
Use only the approved transmission oil.
Failure to comply with this instruction will result in serious damage to the twin-clutch gearbox.

Necessary preliminary work:

Remove EXHAUST SYSTEM .
Remove heat shields
Support the transmission with a jack
Remove TRANSMISSION CROSS MEMBER .
Remove or COMPLETELY REMOVE AND INSTALL THE PROPELLER SHAFT MADE OF STEEL (INSERTED AT THE REAR) or REMOVING AND INSTALLING CARBON PROPELLER SHAFT (INSERTED) COMPLETE S55 .
Unlock the PARKING LOCK to rotate the propeller shaft

Removal:

Release screws.

Remove transmission bearing block (1).

G13691415

Courtesy of BMW OF NORTH AMERICA, INC.

Grip output flange (1) with special tool 23 0 020.

Release nut with special tool 23 2 320.

Tightening torque: 28 10 14AZ .

Installation note:

Replace nut and secure with Loctite 243.

G06905111

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.

G04742232

Courtesy of BMW OF NORTH AMERICA, INC.

Attach special tool 24 2 353 to output shaft (1).

Graphic shows: Automatic transmission

G04726119

Courtesy of BMW OF NORTH AMERICA, INC.

Screw in special tool 24 2 351 until it is firmly connected with radial shaft seal.

Pull out radial shaft seal by screwing in special tool 24 2 352.

Graphic shows: Automatic transmission

G04726120

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Oil sealing lip on radial shaft seal (1). Drive in radial shaft seal (1) with special tool 23 0 410 as far as it will go.

Graphic shows: Automatic transmission

G06905115

Courtesy of BMW OF NORTH AMERICA, INC.

Grip output flange (1) with special tool 23 0 020.

Release nut with special tool 23 2 320.

Tightening torque: 28 10 14AZ .

Installation note:

Replace nut and secure with Loctite 243.

G06905111

Courtesy of BMW OF NORTH AMERICA, INC.

Install the transmission mounting bracket (1).

Insert screws and tighten.

Tightening torque: 22 32 1AZ .

G13691415

Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work:

Install the TRANSMISSION CROSS-MEMBER .
Install the PROPELLER SHAFT .
Install the heat shields
Install EXHAUST SYSTEM .
Remove the transmission jack