11 00 050 Removing and Installing Engine
Special tools required:
- 11 0 000
- 11 5 281
- 11 5 282
- 11 7 310
- 11 8 680
- 00 9 030
- 13 5 281
- 13 5 282
Aluminum screws/bolts must be replaced each time they are released .
Aluminum screws/bolts are permitted with and without colour coding (blue).
For reliable identification: Aluminum screws/bolts are not magenetic .
Jointing torque and angle of rotation must be observed without fail (risk of damage) .
Necessary preliminary tasks:
- Disconnect negative battery lead.
- Lift engine compartment lid into working position (See 51 00... SERVICE POSITION OF ENGINE COMPARTMENT LID .
- Remove acoustic cover.
- Remove air filter housing. (See 13 71 000 REMOVING AND INSTALLING/REPLACING INTAKE FILTER HOUSING (N54) )
- Remove radiator.
- Detach all coolant hoses from engine.
- Remove engine oil pipes from oil-to-water heat exchanger.
- Remove the alternator drive belt.
- Remove air conditioning compressor.
- Remove left and right charge air duct. (See 51 71 371 REMOVING AND INSTALLING/REPLACING TENSION STRUT ON LEFT OR RIGHT SPRING STRUT DOME and/or 51 71 371 REMOVING AND INSTALLING/REPLACING TENSION STRUT ON LEFT OR RIGHT SPRING STRUT DOME )
- Remove intake plenum. (See 11 61 050 Removing and installing intake plenum )
- Detach vacuum line from brake booster.
- Unfasten ignition wiring harness and lay to one side. (See 12 51 100 REPLACING WIRING HARNESS SECTION FOR IGNITION COIL (N54) )
- Unfasten engine wiring harness and lay to one side. (See 12 51 100 REPLACING WIRING HARNESS SECTION FOR IGNITION COIL (N54) )
- Remove catalytic converters.
- Remove output shafts (AWD vehicles only).
- Remove steering shaft from steering gear and lay steering column to one side.
- Remove power steering pump.
- Remove reinforcement plate (AWD vehicles only).
- Remove transmission.
- Release grounding cable on left engine support arm.
Release screws (1) for remove refridgerant lines.
Lay refridgerant lines to one side.
Tightening torque 64 52 1AZ. See A/C HOUSING/EVAP., SWITCHING ELEMENTS .
Installation note:
Replace sealing rings.
Use special tool 00 9 030 to install sealing rings without damaging them.
Unfasten plug connection (2) and disconnect.
Release screw (1).
Tightening torque 11 42 3AZ. See OIL FILTER AND LINES
Pull engine oil pipes down off the thermostat housing.
Installation note: Replace O-rings.
Disconnect fuel lines.
Seal fuel lines with special tool 13 5 281 and 13 5 282.
Detach vacuum line from engine mount.
Secure special tool 11 8 680 to lifting eye on transmission side. (See 11 8 680 ADAPTER )
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). (See 11 8 680 ADAPTER )
Installation note:
Special tool 11 8 680 is correctly installed when locking balls (2) are locked. (See 11 8 680 ADAPTER )
Special tool 11 8 680 is firmly secured to lifting eye. (See 11 8 680 ADAPTER )
Attach special tool 11 0 000 from special tool 11 8 680 in eye (1). (See 11 8 680 ADAPTER )
Screw in towing hook (1).
Attach special tool 11 0 000 from engine crane.
Suspend special tool 11 0 000 from the designated mounting eyelets (2) only.
Unscrew left and right engine mounts.
Lift engine out with crane.
Assemble engine.
Check function of DME.