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Home >> BMW >> 2018 >> M4 2D Convertible, Automatic DCT Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine - Repair -- M4 (F82 & F83) >> 11 41 Engine Oil Pumps >> Removing and installing/replacing oil suction pump (S55 engine)

Removing and installing/replacing oil suction pump (S55 engine)

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

Release screw (1).

Oil suction pipe must be detached to remove exhaust turbocharger return line for cylinders 4 to 6.

G13690393Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

The drive shaft (2) is removed with the oil suction pump.

G13690746Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

G13690394Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1) by 180°.

G13690395Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Remove oil suction pump rearwards.

G13690396Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Position drive linkage (2) in oil pump.

Insert screw (1).

Tightening torque 11 41 3AZ .

G13690746Courtesy of BMW OF NORTH AMERICA, INC.

Attach oil suction pump to screw (1).

G13690395Courtesy of BMW OF NORTH AMERICA, INC.

Insert screw (1).

Tightening torque 11 41 3AZ .

G13690396Courtesy of BMW OF NORTH AMERICA, INC.

Insert bolts (1).

Tightening torque 11 41 5AZ .

G13690394Courtesy of BMW OF NORTH AMERICA, INC.

Position oil suction pump in oil return pipe of exhaust turbochargers 4 to 6.

Insert screw (1).

Tightening torque 11 41 4AZ .

G13690393Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.