Removing and Installing Engine
11 00 050 - Removing and installing engine (N54)
Special tools required:
- 11 0 000
- 11 5 281
- 11 5 282
- 11 7 310 11 7 310 Spacer
- 11 8 680 11 8 680 Adapter
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 battery negative lead
- Lift engine bonnet/hood into assembly position Procedures
- Drain off engine oil Engine Oil Service
- Remove air filter housing Service and Repair
- Remove cover for cowl panel
- Remove fan cowl Service and Repair with electric fan
- Remove radiator Removing and Installing Radiator
- Remove expansion tank Service and Repair.
- Detach all coolant hoses from engine
- Release oil lines Removing and Installing/Replacing Oil-Coolant Heat Exchanger from oil-coolant heat exchanger
- Remove alternator drive belt Service and Repair
- Remove A/C compressor
- Detach pressure pipe 11 61 362 Replacing Right Charge Air Duct from both turbochargers
- Remove fresh air duct Service and Repair on left and right
- Remove intake air manifold Service and Repair
- Detach vacuum line from brake booster
- Unfasten ignition wiring harness 12 51 100 Replacing Wiring Harness Section For Ignition Coil and lay to one side
- Release engine wiring harness 12 51 001 Replacing Wiring Harness Section for Engine from electronics box and lay to one side
- Remove exhaust system.
- Remove catalytic exhaust-gas converters
- Remove output shafts (AWD only)
- Remove power steering pump 32 41 060 Removing and Installing or Replacing Hydraulic Steering Vane Pump
- Remove reinforcement plate (AWD only)
- Remove transmission
- Release grounding strap on left engine support arm
Release bolts (1, 2).
Remove heater end plate (3).
Installation Note:
Make sure heater end plate is correctly seated.
M6x20 bolt must be fitted in middle.
Support engine with special tool 11 7 310 11 7 310 Spacer on steering gear.
Release screws (1) for A/C lines.
Disconnect fuel lines (1).
Seal off fuel lines with special tools 11 5 281 and
11 5 282.
Detach vacuum line from engine mount.
Secure special tool 11 8 680 11 8 680 Adapter to lifting eye on transmission side.
Press locking pin (1) in direction of arrow until locking balls (2) are loose.
Secure special tool 11 8 680 11 8 680 Adapter to lifting eye. Release locking pin (1).
Installation Note:
Special tool 11 8 680 11 8 680 Adapter is correctly installed when locking balls (2) are arrested.
Special tool 11 8 680 11 8 680 Adapter is firmly secured to lifting eye.
Suspend special tool 11 0 000 from special tool 11 8 680 11 8 680 Adapter in eye (1).
Screw in towing hook (1).
Suspend 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.
Remove left engine support arm.
Lift engine out with crane.
Installation Note:
Secure special tool 11 7 310 11 7 310 Spacer to steering gear.
Assemble engine.
Observe following in case of replacement engine 11 00 590 Exchange Engine.
Check function of DME.