Removing and Installing Engine

11 00 050 Removing And Installing Engine (N54, N54T)

Special tools required:







IMPORTANT:
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 negative battery cable.
- Move engine compartment lid into assembly position.
- Remove air filter housing.
- Remove fan cowl with electric fan.
- Remove radiator.
- Remove capacitor
- Remove charge air cooler.
- Remove expansion tank.
- Detach all coolant hoses from engine.
- Remove rear air duct.
- Detach vacuum line from brake booster.
- Unfasten engine wiring harness from electronics box and lay to one side.
- Remove exhaust system.
- Remove transmission.
- Release steering shaft from steering gear (do not remove)
- Release grounding cable on left engine support arm.







Release nut (1) and disconnect positive battery cable (2) from positive battery connection point.







Disconnect fuel lines (1).
Seal fuel lines with special tool 13 5 161 and 13 5 162.
Disconnect tank vent line (2).







Release bolt (1) from engine oil pipe on oil-to-water heat exchanger.
Remove engine oil pipe.

Installation note:
Replace all gaskets.
Tightening torque 17 21 1AZ.







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).
Graphic E9x.







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

Installation note:
Replace self-locking nut.
Tightening torque 22 11 2AZ.







Screw in towing hook (1).
Suspend special tool (4) 11 0 000 from engine lifter.
Suspend special tool 11 0 000 from the designated mounting eyelets (2) only.
Unscrew left and right engine mounts.
Remove left engine support arm.
Lift engine out with crane.







Installation note:
Secure special tool (1) 11 7 310 to steering box.







Assemble engine.
Observe following in case of replacement engine.
Check function of DME.

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