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Home >> BMW >> 2017 >> 320i Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine - Repair - F30 (1 Of 4) >> Oil Sump >> 11 13 000 Removing and installing, sealing or replacing oil sump (N55)

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

Special tools required: 

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

Necessary preliminary tasks: 

Release bolts (1) on transmission.

Tightening torque 11 13 7AZ .

Disconnect plug connection (2) on oil level sensor.

Fig 1: Identifying Plug Connection On Oil Level Sensor
G10100250Courtesy of BMW OF NORTH AMERICA, INC.

Release bolts along line (1).

Fig 2: Identifying Oil Level Sensor Bolts Line
G09844442Courtesy of BMW OF NORTH AMERICA, INC.

If necessary, remove oil level sensor.

Installation note: 

Screw (1) M8x92 mm.

Screws (2) M8x112 mm

Screws (3) M8x92 mm

Fig 3: Identifying Screws Of Oil Sump
G09844443Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Screw (1) M8x50 mm.

Fig 4: Identifying Screw
G09873555Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Replacing all O-rings and seals (1). 

Aluminum screws (2) M8x92 mm and M8x112 mm.

Tightening torque 11 13 3 AZ .

Aluminum screw (3) M8x50 mm.

Tightening torque 11 13 4AZ .

Aluminum screws (4) M8x26 mm.

Tightening torque 11 13 2AZ .

Fig 5: Identifying Seals And Screws
G09844444Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Special tool 11 8 780 is only required if gear is not installed as mechanical stop.

Secure special tool 11 8 780 with two bolts on crankcase.

Fig 6: Identifying Special Tool (11 8 780)
G09844445Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Engine removed:

Position oil sump (1) with no gaps until it contacts special tool 11 8 780 .

Installation note: 

Engine installed:

Position oil sump (1) with no gaps until it contacts gearbox housing.

Bolt on oil sump (1).

Fig 7: Positioning Oil Sump
G09844446Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.