11 00 050 Removing And Installing Engine (N51)
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Special tools required:
- 11 0 020 . See ENGINE - SPECIAL TOOLS (N51) .
IMPORTANT:
Aluminum-magnesium materials. No
steel screws/bolts may be used due to the threat of electrochemical corrosion. A magnesium crankcase requires aluminum screws/bolts exclusively. Aluminum screws/bolts must be replaced each time they are released
. Aluminum screws/bolts are permitted with and without color coding (blue). For reliable identification: Aluminum screws/bolts are not magnetic
. Jointing torque and angle of rotation must be observed without fail (risk of damage)
.
Necessary preliminary tasks:
- Lift engine hood into assembly position . See 51 00... SERVICE POSITION OF ENGINE HOOD/BONNET .
- Remove exhaust system. See 18 00 020 REMOVING AND INSTALLING/REPLACING COMPLETE EXHAUST SYSTEM (N52/N52K/N51) .
- Remove transmission. See 23 00 017 REMOVING AND INSTALLING TRANSMISSION (GS6-17BZ) N51/N52/N52K/N53 or 24 00 032 REMOVING AND INSTALLING AUTOMATIC TRANSMISSION (GA6L45R) .
- Drain engine oil.
- Disconnect negative battery lead.
- Remove air cleaner housing. See 13 71 000 REMOVING AND INSTALLING/REPLACING INTAKE FILTER HOUSING (N51) .
- Remove fan cowl with electric fan. See 17 11 035 REMOVING AND INSTALLING/REPLACING FAN COWL WITH ELECTRIC FAN (N51) .
- Remove radiator. See 17 11 000 REMOVING AND INSTALLING RADIATOR (N51, S65) .
- Remove water pump . See 11 51 000 REMOVING AND INSTALLING/REPLACING WATER PUMP (N51) .
- Remove thermostat. See 11 51 000 REMOVING AND INSTALLING/REPLACING WATER PUMP (N51) .
- Detach all coolant hoses from engine.
- Remove left and right fresh air duct . See 51 13 115 REMOVING AND INSTALLING/REPLACING COWL PANEL COVER .
- Remove intake air manifold. See 11 61 050 REMOVING AND INSTALLING INTAKE AIR MANIFOLD (N51) .
- 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 (N52K, N51) .
- Unfasten engine wiring harness and lay to one side. See 12 51 001 REPLACING WIRING HARNESS SECTION FOR ENGINE (N52K, N51) .
- Remove fuel injector rail and place to one side. See 13 53 240 REPLACING COMPLETE INJECTION PIPE (N52/N52K) .
Release air-conditioning compressor (1) and set down on front axle carrier. See Fig 1.
IMPORTANT:
A/C lines are pressurized. Do not disconnect A/C lines.
Do not disconnect coolant pipe from crankcase.
NOTE:
Illustrations show E60.
Release power steering pump (1) and set down on front axle carrier. See Fig 2.