11 13 000 Removing and fitting, sealing or replacing the oil sump (B48B all-wheel drive vehicle)

WARNING: This page is about a different car, the 2018 BMW 330i xDrive and 2017 BMW 330i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 4 472
11 4 471
2 469 803
11 8 780

Necessary preliminary work:

Disconnect battery negative cable
Remove front axle differential
Remove bearing support
Remove bottom acoustic cover
Remove starter motor
Drain off engine oil

CAUTION: Engines with surface sealant:
Application time of sealing bead max . 12 minutes.

Removal:

Unlock and disconnect connector (1).

Release cable from oil sump at clips (2).

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Release screws (1) from transmission.

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Release screws (1 - 7) from oil sump.

Fig 1: Oil Sump Screws Loosening Sequence

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Release screws (1 - 7) from oil sump.

Fig 2: Oil Sump Screws Loosening Sequence

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Release screws (1 - 3) from oil sump.

Fig 3: Oil Sump Screws Loosening Sequence

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Release screws (1 and 2) from oil sump.

Fig 4: Oil Sump Screws Loosening Sequence

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Engine with liquid sealing compound:

CAUTION: The oil sump can only be released in the areas where an aperture is located in the oil sump.

Release oil sump using screwdriver (1).

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Remove oil sump (1) downwards to the rear.

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Preparation for installation:

Clean sealing residues from oil sump and crankcase.

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

Clean sealing surface (1) with special tool 11 4 472 and 11 4 472 of sealing residue.

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Installation note:

Clean sealing surface (1) with brake cleaner 3.3.

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

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

Clean sealing surface (1) with special tool 11 4 471 and 11 4 472 of sealing residue.

Installation note:

Clean sealing surface (1) with brake cleaner 3.3.

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

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Keep special tool 2 469 803 ready.

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

Parts: Sealing compound 2.2

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Apply sealing compound 2.2 in this area (1).

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

The complete circumference of the oil return orifice (arrow) must be covered.

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

Sealant height approximately 2 to 2.5 mm.

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Installation:

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

Position special tool 11 8 780 with screws (1) of transmission so that oil sump aligns exactly with engine block.

If necessary, replace fitting sleeves.

Attaching the oil sump.

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CAUTION: Installing screws with an incorrect screw length may cause damage to the component.
Observe exact screw lengths.
Reinstall screws corresponding to the original screw length.
The oil sump may be damaged when using the incorrect screw length!

Ensure that the correct screw (2) (M8x40) is used for mounting the oil sump on the transmission.

The screw (1) (mounting bolt of the starter motor) may never be used for mounting the oil sump.

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Install oil sump (1) to front and upwards.

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Insert screws (1 and 2).

Fig 5: Oil Sump Screws Tightening Sequence

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Insert screws (1 - 7).

Fig 6: Oil Sump Screws Tightening Sequence

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Insert screws (1 - 7).

Fig 7: Oil Sump Screws Tightening Sequence

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Insert screws (1 - 3).

Tighten down all screws on oil sump.

Tightening torque 11 13 2AZ .

Fig 8: Oil Sump Screws Tightening Sequence

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Vehicles with automatic transmission:

Tighten screws (1) on transmission.

Tightening torque 24 00 1AZ .

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Fasten cable to oil sump with clips (2).

Connect the connector (1).

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Required follow-up work:

Install front axle differential
Install bearing support
Install starter motor
Install lower acoustic cover
Connect battery earth lead
Top up engine oil
Check engine for leak tightness