11 00 050 Removing and installing engine (N54)
Special tools required:
Aluminium screws/bolts are permitted with and without color coding (blue).
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:
- Disconnect the BATTERY CABLE FROM THE NEGATIVE TERMINAL .
- Remove TRAILING LINKS .
- Move engine compartment lid into assembly position.
- Remove SOUND INSULATION from bulkhead upper part
- Drain ENGINE OIL .
- Remove COWL PANEL COVER .
- Remove INTAKE SILENCER HOUSING .
- Remove FAN COWL with electric fan.
- Remove RADIATOR .
- Release ENGINE OIL PIPE from the oil-to-water heat exchanger.
- Detach all coolant hoses from engine.
- Release SUCTION AND PRESSURE LINES from power steering pump (do not remove power steering pump).
- Remove LEFT CHARGE AIR DUCT .
- Remove CLEAN AIR PIPE on left and right.
- Detach vacuum line from BRAKE SERVO .
- Release ENGINE WIRING HARNESS from electronics box and lay to one side (do not remove electronics box).
- Release wiring harness for injectors from additional electronics box.
- Remove EXHAUST SYSTEM .
- Release ground cable from engine holder.
- Remove TRANSMISSION .
Support engine with special tool 11 7 310 on steering box.
Detach connector from power steering pump (1).
Detach right pressure pipe (1) from charge air cooler.
Evacuate air conditioning system.
Release screws (1) of A/C lines and disconnect.
Do not remove air conditioning compressor.
Disconnect fuel lines (1 and 2).
Close off fuel line (1) with special tool 13 5 281 .
Close off fuel line (2) with special tool 13 5 282 .
Secure special tool 11 8 680 to lifting eye on gearbox side.
Press locking pin (1) in direction of arrow until locking balls (2) are loose.
Secure special tool 11 8 680 to lifting eye. Release locking pin (1).
Installation note:
Special tool 11 8 680 is mounted correctly if the locking balls (2) are locked.
Special tool 11 8 680 is firmly secured to lifting eye.
Attach special tool 11 0 000 to special tool 11 8 680 in eye (1).
Screw in towing hook (1).
Attach special tool 11 0 000 to engine lifter.
Suspend special tool 11 0 000 from the designated mounting eyelets (2) only.
Release nuts on engine mount on left and right. See RIGHT ENGINE MOUNT and LEFT ENGINE MOUNT .
Lift engine out with crane.
Installation note:
Fix special tool 11 7 310 onto steering box.
Assemble engine.
Top up COOLANT and vent cooling system.
Fill and vent hydraulic steering. See BLEEDING POWER STEERING UNIT or BLEEDING POWER STEERING (VEHICLES WITH DYNAMIC DRIVE) .
Check function of DME control unit.