11 00 050 Removing and installing engine (N20)

Special tools required:

11 0 000
72 15 8 108 670
13 5 160
00 9 030

Necessary preliminary tasks:

Disconnect NEGATIVE BATTERY LEAD .
MOVE engine compartment lid into service position.
REMOVE both trailing links.
Remove TRANSMISSION .
Remove EXHAUST SYSTEM .
Remove both front DRIVE SHAFTS (all-wheel drive vehicles only).
Drain ENGINE OIL .
Remove ACOUSTIC COVER
Remove INTAKE SILENCER HOUSING .
REMOVE bottom clean air pipe.
REMOVE LEFT CHARGE AIR DUCT .
Remove RIGHT CHARGE-AIR DUCT .
Detach all coolant hoses from engine.
Remove COOLANT THERMOSTAT .
Evacuate HEATING AND AIR CONDITIONING SYSTEM .

For removing and installing the engine, the towing hook 72 15 8 108 670 is required.

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

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Fold back cover (1).

Release nut underneath. Remove positive battery cable from positive battery connection point.

Tightening torque: 12 42 3AZ .

Fig 2: Identifying Back Cover

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Release vacuum line (1) to vacuum pump.

Fig 3: Identifying Vacuum Line To Vacuum Pump

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Detach the fuel line at the snap fastener (1).

Fig 4: Identifying Fuel Line And Snap Fastener

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Seal fuel lines with seals (1) and (2) from set of special tools 13 5 160 .

Fig 5: Identifying Fuel Lines With Seals

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Release and disconnect plug connection (2) at A/C compressor.

Release screws (1).

Tightening torque: 64 52 1AZ .

Remove refrigerant lines (3).

Installation note:

Replace sealing rings.

Use special tool 00 9 030 to install sealing rings without damaging them.

Fig 6: Identifying A/C Compressor And Plug Connection

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Unlock all connectors (1) from control unit and disconnect.

Place engine wiring harness to one side.

Installation note:

Make sure grommets are correctly fitted (watertightness).

Fig 7: Identifying Control Unit Connectors

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Detach all connectors from Power

Distribution Module (1). Release wiring harness from bulkhead.

Disconnect plug connection (2).

Release screws (3) and lay wiring harness to one side.

Fig 8: Identifying Power Distribution Module And Plug Connection

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

Tightening torque: 22 11 2AZ .

Fig 9: Identifying Screws On Engine Mount

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Schematic diagram:

Screw towing eye (1) into cylinder head.

Tightening torque: 11 12 5AZ .

Attach special tool 11 0 000 to engine crane.

Suspend special tool 11 0 000 only from designated mounting eyelets (2).

The installation eye is in close proximity to starter motor.

Fig 10: Attaching Special Tool (11 0 000) To Engine Crane

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IMPORTANT: Note restrictions on steering shaft and bulkhead.

Lift engine out with engine crane.

Assemble engine.

Check function of DME.