13 61 550 Removing and Installing/Replacing Control Unit For Direct Injection (N73)
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Necessary preliminary tasks:
- Read fault memory.
- itch off ignition.
- Follow instructions for disconnecting and connecting battery.
See 12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY
Disconnect battery.
IMPORTANT:
- Observe removal and installation of electronic control units. See 12 00 ... INSTRUCTIONS FOR REMOVING AND INSTALLING ELECTRONIC CONTROL UNITS
Observe following instructions before replacing control unit:
- Program control unit. See 12 14 705 PROGRAMMING CONTROL UNIT (DME/DDE)
- Code control unit.
Remove right fresh air duct. See 64 31 056 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT FRESH-AIR DUCT (AUTOMATIC A/C HIGH)
Release screw and remove holder (1).
Release screws and remove cover (2) from control unit box.
NOTE:
Release screws on seal (3) only when removing wiring harness.
Installation:
Insert tabs (1) in openings (2) and close cover.
Unlock plug connections (6) on HDEV control unit (cylinders 1 - 6) and disconnect.
Installation:
Cable colors black.
Unlock plug connections (5) on HDEV control unit (cylinders 7 - 12) and disconnect.
Installation:
Cable colors red.
Assemble vehicle.
Check function of DME.