Removing and Installing Engine
11 00 050 Removing and installing engine (N55)Special tools required:
Necessary preliminary work:
^ Disconnect negative battery lead.
^ Disconnect positive terminal at positive battery connection point in engine compartment.
^ Move engine compartment lid into service position.
^ Remove intake plenum.
^ Remove clean air pipe.
^ Remove left charge air duct.
^ Remove right charge-air duct.
^ Remove both tension struts.
^ Remove rear ignition coil cover.
^ Evacuate A/C system
^ Remove the catalytic converter.
^ Remove transmission.
^ Remove front output shafts
^ 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.
Example illustration.
Release screws (2) and remove refrigerant lines (3).
Tightening torque 64 52 1AZ.
Installation note:
Replace sealing rings.
Use special tool 00 9 030 to mount sealing rings without damaging them.
Release fuel feed and return lines (1) under vehicle and disconnect.
Close off fuel line (3) with special tool 13 5 281.
Close off fuel line (2) with special tool 13 5 282.
Attach special tool 11 8 680 to rear lifting eye (gearbox 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 mounting 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 measurement 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 engine mount on left and right.
Installation note:
Replace self-locking nuts.
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.
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