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

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Special tools required:

11 8 780

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:

Lower FRONT AXLE .
Drain and add ENGINE OIL .
Detach power steering pump and set it aside (Dynamic Drive only). See applicable procedure for drivetrain configuration: 32 41 037 REMOVING AND INSTALLING/REPLACING POWER STEERING PUMP FOR HYDRAULIC STEERING GEAR WITH DYNAMIC DRIVE (N55) or 32 41 090 REMOVING AND INSTALLING (REPLACING) HYDRAULIC PUMP FOR DYNAMIC DRIVE (N55) .

Release screws (1).

Remove left engine support arm.

Fig 1: Identifying Screws Of Engine Support Arm

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Release screws (1).

Release screw (2).

Remove holder (3) for deflecting element.

Fig 2: Identifying Holder And Screw

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Unclip electrical lines (2) of monitoring sensors from holder (3).

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

Release bolts (5) on gearbox.

Tightening torque 11 13 7AZ .

Lay holder (3) to one side.

Disconnect plug connection (4) on oil level sensor.

Fig 3: Identifying Electrical Lines, Holder, Plug Connections, And Bolts

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Release bolts along line (1).

If necessary, remove oil level sensor.

Fig 4: Identifying Bolts

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Installation note:

Screw (1) M8x92 mm.

Screws (2) M8x112 mm

Screws (3) M8x92 mm

Fig 5: Identifying Screws At Rear Of Oil Sump

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Installation note:

Screw (1) M8x50 mm.

Fig 6: Identifying Screw Location

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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 7: Identifying Seals And Screws

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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 8: Identifying Special Tool 11 8 780

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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 9: Positioning Oil Sump

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Assemble engine.