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Home >> Mini >> 2017 >> Cooper Base, 2D Convertible, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> Engine - Repair (F57) >> 11 13 Oil Pan >> Removing and installing, sealing or replacing oil sump (B48 and B46 engine) (Cooper S and John Cooper Works)

Removing and installing, sealing or replacing oil sump (B48 and B46 engine) (Cooper S and John Cooper Works)

Special tools required: 

Preliminary work needed: 

Attention! 

Engines with surface sealant:

Maximum  processing time for sealing bead is 10 minutes. 

Commissioning of the assembly is not possible until at least 25 minutes  after the processing time.

Non-observance  can lead to leaks in the assembly.

Removal: 

Release tank vent line (1) at clamp (2).

G11644906Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect tank vent line (1) at connection (2).

G11644907Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and disconnect connector (1) for oil-level sensor.

Remove screw (2).

Remove cable routing (3).

Disengage the positive battery cable on the clamp (4).

G11644908Courtesy of BMW OF NORTH AMERICA, INC.
Fig 1: Oil Sump Screws Loosening Sequence
G11644909Courtesy of BMW OF NORTH AMERICA, INC.

Loosen screws (1).

Release screws (2-20).

Engine with liquid sealing compound: 

Attention! 

The oil sump can only be loosened in the areas (1) where an aperture is present in the oil sump.

G09919573Courtesy of BMW OF NORTH AMERICA, INC.

Use a mounting lever (1) to release oil sump in arrow direction at the correct location.

G09919574Courtesy of BMW OF NORTH AMERICA, INC.

Preparation for installation: 

Clean seal residues from oil sump and crankcase.

Attention! 

Do not use any metal-cutting tools (e.g. emery cloth).

Clean the sealing residue off the sealing surface (1) using special tool 11 4 472 and 11 4 472.

Installation note: 

BRAKE CLEANER 3.3 .

The sealing surface (1) must be free of oil, grease and cleaning agents.

G11644912Courtesy of BMW OF NORTH AMERICA, INC.

Attention! 

Do not use any metal-cutting tools (e.g. emery cloth).

Clean sealing residue off the sealing surface (1) with special tool 11 4 471 and 11 4 472

Installation note: 

BRAKE CLEANER 3.3 .

The sealing surface (1) must be free of oil, grease and cleaning agents.

G11644913Courtesy of BMW OF NORTH AMERICA, INC.

Have special tool 2 469 803 ready.

G12700801Courtesy of BMW OF NORTH AMERICA, INC.

Apply sealing compound (1) on the special tool 2 469 803 as shown.

Parts  : SEALING COMPOUND 2.2 .

G12700802Courtesy of BMW OF NORTH AMERICA, INC.

Attention! 

Engines with surface sealant:

Maximum  processing time for sealing bead is 10 minutes. 

Commissioning of the assembly is not possible until at least 25 minutes  after the processing time.

Non-observance  can lead to leaks in the assembly.

G11644914Courtesy of BMW OF NORTH AMERICA, INC.

Apply SEALING COMPOUND 2.2  in this area (1).

Make sure that the sealing bead runs along the inner edge.

The oil return orifice (arrow) must be rounded completely.

NOTE: The oil sump must be installed approximately 10 minutes after application of the sealing compound.

Sealant height approximately 2 to 2.5 mm.

Installation: 

Installation note: 

Special tool 11 8 780 is only necessary if the engine or the transmission is removed.

Position the special tool 11 8 780 with the Torx screw (1) from the transmission so that the motor oil engine oil pan is exactly flush with the engine block.

If necessary, replace lining sleeves.

Attaching the oil sump.

G11644915Courtesy of BMW OF NORTH AMERICA, INC.

Attention! 

The use of screws of improper length can lead to component damage.

Note the exact screw length.

Install screws that correspond to the original length.

The oil pan can be damaged if the wrong screw length is used!

Ensure that the correct  screw (2) (M8x40) is used for attaching the oil pan at the transmission.

The screw (1) (mounting bolt of starter) must never  be used to attach the oil pan.

G12700805Courtesy of BMW OF NORTH AMERICA, INC.
Fig 2: Oil Sump Bolts Tightening Sequence
G11644909Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: You must follow the screwing sequence!

Join bolts (2) to (20) to 5 Nm. 

Join bolts (1) to 5 Nm  .

Tighten bolts (2) to (20).

Tightening torque: 11 13 2AZ .

Tighten down screws (1).

Tightening torque: 24 00 1AZ .

Clip in the positive battery cable in the clamp (4).

Properly route the cable at the oil sump.

Position cable holder (3) and fasten with screw (2).

Connect connector (1) for oil-level sensor.

G11644908Courtesy of BMW OF NORTH AMERICA, INC.

Connect tank vent line (1) at separation point (2).

G11644907Courtesy of BMW OF NORTH AMERICA, INC.

Clip the tank vent line (1) into the clamp (2).

G11644906Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work: