Removing and Installing Engine

11 00 050 Removing And Installing Engine (N52T)

Special tools required:







IMPORTANT:
Aluminium-magnesium materials.
No steel screws/bolts may be used due to the threat of electrochemical corrosion.
A magnesium crankcase requires aluminium screws/bolts exclusively.
Aluminium screws/bolts must be replaced each time they are released.
Aluminium screws/bolts are permitted with and without colour 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 battery cable Minus.
- Move engine compartment lid into service position.
- Remove exhaust system.
- Remove transmission.
- Remove intake silencer housing.
- Remove fan cowl with electric fan.
- Remove thermostat.
- Draw off A/C system.
- Remove coolant thermostat.
- Remove radiator.
- Remove capacitor
- Detach all coolant hoses from engine.
- Remove bulkhead sound insulation.
- Remove intake plenum.
- Detach vacuum line.
- Unfasten engine wiring harness and lay to one side.







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







Support engine with special tool 11 7 310 on steering box.







Undo nuts (1) on hydraulic steering fluid reservoir. Set oil reservoir aside (if installed).
Tightening torque 32 41 1AZ.







Remove circlip (1).
Unlock and disconnect fuel lines (2 and 3).







Close off fuel line (3) with special tool 13 5281.
Close off fuel line (2) with special tool 13 5 282.







Release screws (2, 3).
Disconnect pressure and intake pipes from air conditioning compressor.

Installation note:
Replace all sealing rings and moisten with refrigerant oil.
Tightening torque 64 53 7AZ.







Release power steering pump (1) and set aside (if installed).
Tightening torque 32 41 20AZ.

NOTE: Do not disconnect hydraulic lines.







Screw towing eye (1) into cylinder head.
Tightening torque 11 12 11AZ.
Attach special tool 11 0 000 to engine crane.
Suspend special tool 11 0 000 from the designated mounting eyelets (2) only.
Lift engine out with engine crane.







Assemble engine.
Check function of DME.

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