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

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Special tools required:

11 8 780

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

Lower FRONT AXLE .
Drain and add ENGINE OIL .
Detach power steering pump and set it aside (Dynamic Drive only). See REMOVING/INSTALLING/REPLACING POWER STEERING PUMP FOR HYDRAULIC STEERING GEAR WITH DYNAMIC DRIVE (N55) and REMOVING/INSTALLING/REPLACING HYDRAULIC PUMP FOR DYNAMIC DRIVE (N55) .

Release screws (1).

Remove left engine support arm.

Fig 1: Identifying Left Engine Support Arm Screws

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Release screws (1).

Release screw (2).

Remove holder (3) for deflecting element.

Fig 2: Identifying Deflecting Element Holder And Screws

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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 Monitoring Sensors Electrical Lines, Holder, Plug Connections And Gearbox Bolts

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Release bolts along line (1).

If necessary, remove oil level sensor.

Fig 4: Identifying Oil Level Sensor Bolts

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Installation note:

Screw (1) M8x92 mm.

Screws (2) M8x112 mm

Screws (3) M8x92 mm

Fig 5: Identifying Screws

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Installation note:

Screw (1) M8x50 mm.

Fig 6: Identifying Screw

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Installation note:

Replacing all O-rings and seals (1).

Aluminium screws (2) M8x92 mm and M8x112 mm.

Tightening torque 11 13 3 AZ .

Aluminium screw (3) M8x50 mm.

Tightening torque 11 13 4AZ .

Aluminium 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: Securing Special Tool (11 8 780) With Crankcase Using Bolts

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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.

Fig 9: Identifying Oil Sump

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Bolt on oil sump (1).

Assemble engine.