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Home >> BMW >> 2012 >> 528i >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - Repair >> Shift Valves, Parking Lock >> 28 40 050 Replacing Shaft Seal For Clutch Cover (GS7D36SG)

28 40 050 Replacing Shaft Seal For Clutch Cover (GS7D36SG)

Special tools required: 

IMPORTANT: It is essential to adhere to conditions of absolute cleanliness.
Any dirty parts must be cleaned before removing the clutch cover.

Necessary preliminary tasks: 

To prevent the transmission oil from spilling out, tilt the gearbox back before removing the clutch cover.

Installation note: 

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.

Use a suitable tool to take the radial shaft seal (1) off the clutch cover.

IMPORTANT: Risk of damage:
Damage to the clutch cover will result in oil leaks!
If the CLUTCH COVER  was damaged on removing the radial shaft seal, it is imperative  that the cover be replaced.
Fig 1: Removing Radial Shaft Seal
G06905120Courtesy of BMW OF NORTH AMERICA, INC.

Place the clutch cover (1) out flat on a workbench.

IMPORTANT: Pay attention to lug (2).

Coat sealing lips of radial shaft seal with transmission oil.

Press the radial shaft seal (3) lightly into the clutch cover.

Fig 2: Clutch Cover And Radial Shaft Seal
G06905121Courtesy of BMW OF NORTH AMERICA, INC.

Use special tool 24 2 370 to drive the radial shaft seal into the clutch cover until the sealing ring is flush.

Fig 3: Special Tool (24 2 370)
G05758188Courtesy of BMW OF NORTH AMERICA, INC.

Use a suitable tool to take the O-ring of the clutch cover out of the groove.

Use a lint-free cloth to remove oil contamination from the O-ring groove.

Installation note: 

Replace O-ring.

Coat O-ring with transmission oil before installing.

Fig 4: Removing Clutch Cover O-Ring
G06905123Courtesy of BMW OF NORTH AMERICA, INC.