11 00 050 Removing and installing engine (N55)

Special tools required:

11 0 000
11 7 310
11 8 680
13 5 281
13 5 282

Necessary preliminary tasks:

Disconnect NEGATIVE BATTERY LEAD .
Move ENGINE COMPARTMENT LID into service position.
Remove INTAKE PLENUM .
Remove cowl panel COVER .
Remove CLEAN AIR PIPE .
REMOVE LEFT CHARGE AIR DUCT .
Remove right CHARGE-AIR DUCT .
Remove EXPANSION TANK .
Remove THERMOSTAT .
Remove rear ignition coil cover.
Remove AIR CONDITIONING COMPRESSOR .
Remove the CATALYTIC CONVERTER .
Remove transmission . See 24 00 033 REMOVING AND INSTALLING AUTOMATIC TRANSMISSION (GA8HP45Z) N55 , 24 00 033 REMOVING AND INSTALLING AUTOMATIC TRANSMISSION (GA8HP45Z) N55 AWD or 23 00 028 REMOVING AND INSTALLING TRANSMISSION (GS6-45BZ) N55 .
Remove front output shaft (all-wheel drive vehicles only).
Remove RADIATOR .
Detach all coolant hoses from engine.
Detach vacuum line from brake booster.

To remove or install the engine, the towing hook 72 15 8 108 670 is required.

Fig 1: Towing Hook (72 15 8 108 670)

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Pull off rubber mount (1) and slightly raise service cover (2) until lock of cover (3) is accessible.

Unlock lock and remove cover (3).

Fig 2: Cover Lock

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Slacken nut (1).

Tightening torque: 12 42 3AZ .

Remove positive battery cable from battery positive terminal.

Fig 3: Nut

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Unlock and pull off all connectors (1) from power distribution module.

Remove cover (2).

Release nut beneath it and set positive battery cable aside.

Tightening torque: 12 52 7AZ .

Release lock (3) in direction of arrow.

Feed out and remove power distribution module.

Fig 4: Releasing Lock

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Unlock and pull off the connector (1) from the power distribution module and cable holders.

Release the clamp (2) and expose the wiring harnesses.

Fig 5: Power Distribution Module Connector And Clamp

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NOTE: Hot-climate version
Release screw (1).
Remove oil pipes (2) from oil filter unit.
Release oil lines on cylinder head cover.

Fig 6: Oil Filter Unit Oil Pipes And Screw

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Unscrew nuts (1).

Remove power protective plate (2).

Release fuel lines from protective plate.

Fig 7: Power Protective Plate And Nuts

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Unlock and disconnect fuel tank ventilation line (1).

Unlock and disconnect fuel delivery line (2).

Fig 8: Fuel Tank Ventilation And Delivery Line

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Close off fuel line (3) with special tool 13 5 281.

Close off fuel line (2) with special tool 13 5 282.

Fig 9: Fuel Lines

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Attach special tool 11 8 680 to rear lifting eye (gearbox side).

Push ball lock pin (1) in direction of arrow and hold down until special tool 11 8 680X is positioned in lifting eye.

Pull ball lock pin (1) outward in direction of arrow until both balls (2) are pushed outward.

Installation note:

Fig 10: Pushing Ball Lock Pin

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For checking correct mounting of special tool 11 8 680.

There must be a 6.5 mm gap between ball lock pin (1) and ball lock pin housing.

The gap dimension can be checked using a 6.5 mm drill.

Attach special tool 11 0 000 to engine crane.

Suspend special tool 11 0 000 from the designated mounting eyelets of special tool 11 8 680 only (see arrow).

Fig 11: Special Tool (11 8 680)

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Release nut (1) on engine mount on left and right.

Installation note:

Replace self-locking nuts.

Tightening torque: 22 11 2AZ .

Fig 12: Engine Mount Nut

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Screw towing eye into cylinder head.

Tightening torque: 11 12 5AZ .

Suspend special tool 11 0 000 from the designated mounting eyelets (1) only.

Lift engine out with engine crane.

Fig 13: Removing Special Tool (11 0 000) From Designated Mounting Eyelets

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Assemble engine.

Check function of DME.