24 11 016 Removing and installing/sealing or replacing transmission sump

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IMPORTANT:

Do not let skin come in contact with gearbox oil and do not inhale fuel vapors.
Wear protective gloves.
Ensure adequate ventilation

IMPORTANT: Remove transmission sump only after it has cooled down.
After completion of work, CHECK GEARBOX OIL LEVEL .
Use only the approved transmission oil: ATF oil Shell L12108 ; BMW part number 83 22 2 152 426 ; 20 liters
Failure to comply with this requirement will result in serious damage to the automatic transmission!

IMPORTANT: Aluminium screws/bolts must be replaced each time they are released .
Aluminium screws/bolts are permitted with and without color coding.

For reliable identification:

Aluminium screws/bolts are not magnetic .

Jointing torque and angle of rotation must be observed without fail (risk of damage) .

Necessary preliminary tasks:

Remove rear UNDERBODY PROTECTION with side guides

Remove oil drain plug (1).

Tightening torque 24 11 5AZ .

Drain automatic transmission oil.

Installation note:

Replace oil drain plug.

Fig 1: Identifying Oil Drain Plug

Courtesy of BMW OF NORTH AMERICA, INC.

Recycling:

Catch and dispose of escaping transmission fluid.

Observe country-specific waste disposal regulations.

Release all screws (1-13).

Remove transmission oil sump.

Installation note:

Aluminium screws must be replaced.

Insert screws in sequence 1...13 until screw heads make contact.

Tighten screws in sequence 1...13 to specified torque.

Tightening torque 24 11 4AZ .

Fig 2: Transmission Oil Sump Bolts Tightening/Loosening Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

Remove gasket (1) from transmission sump.

Clean gearbox oil sump to remove residual oil.

Clean sealing surfaces with a cloth.

Place new gasket on sealing surface of transmission oil sump.

IMPORTANT: Do not degrease gearbox sump with cleaning agent.

Fig 3: Identifying Transmission Sump Gasket

Courtesy of BMW OF NORTH AMERICA, INC.