28 02 020 Removing and installing or replacing transmission oil sump (GS7D36SG)

WARNING: This page is about a different car, the 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Remove transmission oil sump only after it has cooled down.
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 work, check TRANSMISSION OIL LEVEL .
Use only the approved gear oil for dual clutch transmission.
Failure to comply with this instruction will result in serious damage to the twin-clutch gearbox.

Recycling

Catch and dispose of escaping transmission oil.

Observe country-specific waste disposal regulations.

Necessary preliminary work

Remove rear UNDERBODY PROTECTION

Remove oil drain plug (1).

Drain off transmission oil.

Fig 1: Identifying Oil Drain Plug

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew all bolts.

Remove transmission oil sump (1).

Installation note:

Clean sealing ring groove with fluff-free cloth.

Fig 2: Transmission Oil Sump Bolts Tightening/Loosening Sequence (GS7D36SG)

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Insert screws until contact with screw heads is made.

Screw down to torque in specified sequence (1-14).

Tightening torque, see 28 00 4AZ in 28 00 DOUBLE CLUTCH GEARBOX .