11 13 000 Removing and installing, sealing or replacing oil sump (N55)

IMPORTANT: Aluminum screws/bolts are permitted with and without color coding (blue).
Aluminum screws/bolts must be replaced each time they are released.
For reliable identification:
Aluminum screws/bolts are not magnetic .
Joining torque and angle of rotation must be observed without fail (risk of damage) .

Necessary preliminary tasks:

Drain and add ENGINE OIL .
Remove FRONT AXLE DIFFERENTIAL .
Remove BEARING SUPPORT .

NOTE: The lines must be detached from the oil sump; if necessary, detach oil pump and place to one side.

Release bolts (3) on transmission.

Tightening torque 11 13 6AZ .

Detach return hose (2).

IMPORTANT: Different screw lengths for securing the oil sump are fitted in vehicles with all-wheel drive.
Observe different tightening torques.

Fig 1: Identifying Return Hose And Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws along line (1).

For vehicles with AWD:

Tightening torque 11 13 2AZ, 3AZ, AND 4AZ .

Installation note:

Replace aluminum screws.

If necessary, release nuts (4). Remove oil level sensor.

Tightening torque 11 13 7AZ .

Installation note:

Replace sealing ring.

IMPORTANT: There must be no adhesive residues in the lower crankcase section retaining threads.
Clean retaining threads and sealing surfaces.

Installation note:

Replace all gaskets.

Assemble engine.

Necessary preliminary tasks:

Drain and add ENGINE OIL .

NOTE: The lines must be detached from the oil sump; if necessary, detach oil pump and place to one side.

Release bolts (3) on transmission.

Tightening torque 11 13 6AZ .

Detach return hose (2).

IMPORTANT: Different screw lengths for securing the oil sump are fitted in vehicles with all-wheel drive.

Observe different tightening torques.

Fig 1: Identifying Return Hose And Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws along line (1).

For vehicles with AWD:

Tightening torque 11 13 2AZ, 3AZ, AND 4AZ .

Installation note:

Replace aluminum screws.

If necessary, release nuts (4). Remove oil level sensor.

Tightening torque 11 13 7AZ .

Installation note:

Replace sealing ring.

IMPORTANT: There must be no adhesive residues in the lower crankcase section retaining threads.

Clean retaining threads and sealing surfaces.

Installation note:

Replace all gaskets.

Assemble engine.