Removing and Installing Engine

11 00 050 Removing and installing engine (N55)

Special tools required:







Necessary preliminary tasks:
- Disconnect negative battery lead.
- Move engine compartment lid into service position.
- Remove both trailing links.
- Remove capacitor
- Remove manifold.
- Remove clean air pipe.
- Remove catalytic converter.
- Remove transmission.
- Remove front output shafts (AWD only).
- Remove radiator.
- Detach all coolant hoses from engine.
- Detach vacuum line from brake booster.
- Unfasten engine wiring harness and lay to one side.







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







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







Detach right pressure pipe (1) from charge air cooler.







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







Close off fuel line (3) with special tool 13 5 281.
Close off fuel line (2) with special tool 13 5 282.







Release power steering pump (1) and set down on front axle support.

NOTE:
Do not disconnect hydraulic lines.
Shown without air conditioning compressor for purposes of clarity.







Mount special tool 11 8 680 on rear lifting eye (transmission 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:
For checking correct installation 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).







Release nut (1) on earth strap.







Release both engine mounts.
Unscrew nuts (1).

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







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.







Assemble engine.
Check function of DME.

L5':