11 13 000 Removing and installing, sealing or replacing oil sump (N52K)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2010 BMW X5, 2010 BMW X3, 2009 BMW X5, 2009 BMW X3, and 2008 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Aluminium-magnesium materials.
No steel screws/bolts may be used due to the threat of electrochemical corrosion.
A magnesium crankcase requires aluminum screws/bolts exclusively.
Aluminum screws/bolts must be replaced each time they are released.
The end faces of aluminum screws/bolts are painted blue for the purposes of reliable identification.
Jointing torque and angle of rotation must be observed without fail.
Risk of damage!

Necessary preliminary tasks:

Lower front axle, see 31 11 506 LOWERING/RAISING FRONT AXLE CARRIER (X3) or 31 11 506 LOWERING/RAISING FRONT AXLE CARRIER (UNIVERSAL LIFTER) (X5)
Remove front differential, see 31 50 001 REMOVING AND INSTALLING/REPLACING FRONT DIFFERENTIAL (X3) or 31 50 001 REMOVING AND INSTALLING/REPLACING FRONT DIFFERENTIAL (X5) .

Release screw (1) from grounding cable (2) on right bearing block (3).

Lay grounding cable (2) to one side.

Fig 1: Grounding Cable, Bearing Block And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Picture shows an E92 by way of example. Other model series may differ in certain details.

Unclip electric leads (2) of oxygen monitor sensors from holder (3).

Disconnect plug connections (1) of oxygen monitor sensors and lay to one side.

Release bolts (5) on transmission.

Tightening torque: 11 13 5AZ, see 11 13 OIL PAN .

Disconnect plug connection (4) on oil level sensor.

Lay holder (3) to one side.

Fig 2: Plug Connections, Holder, Electric Leads And Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

For vehicles with optional extra SA205 (automatic transmission):

NOTE: Transmission fluid cooler lines (2) (supply and return) are secured to the oil sump with two holders (3).

If necessary, release oil pump and lay to one side.

Unscrew nuts (1).

Tightening torque: 11 13 6AZ, see 11 13 OIL PAN .

Release holders (3) with transmission fluid cooler lines (2) from oil sump guides.

Fig 3: Fluid Cooler Lines, Holders And Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

For all vehicles:

NOTE: For purposes of clarity, the picture shows the front axle carrier and stabilizer bar removed.

Unscrew nut (3).

Tightening torque: 11 13 7AZ, see 11 13 OIL PAN .

Release screw (2).

Tightening torque: 11 13 8AZ, see 11 13 OIL PAN .

Release both holders with coolant hose (1) from oil sump guide.

Fig 4: Coolant Hose, Screw And Nut

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Bolts of oil sump have different lengths.
Observe different tightening torques.

Release bolts along line (1).

Tightening torque: 11 13 2AZ, see 11 13 OIL PAN .

Tightening torque: 11 13 3AZ, see 11 13 OIL PAN .

Installation:

Replace aluminum screws.

If necessary, remove oil level sensor (2) and right bearing block (3).

Fig 5: Oil Level Sensor And Bearing Block

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: There must be no adhesive residues in the bedplate retaining threads.
Clean retaining threads.

Installation:

Replace all seals.

Assemble engine.