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13 61 550 Removing And Installing/Replacing Control Unit For Direct Injection (N73)

Necessary Preliminary Tasks:

Read fault memory.
Switch off ignition.
Follow instructions for disconnecting and connecting battery. Refer to 12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY .
Disconnect battery.

Important!
Observe removal and installation of electronic control units. Refer to 12 00 ... INSTRUCTIONS FOR REMOVING AND INSTALLING ELECTRONIC CONTROL UNITS .

Observe following instructions before replacing control unit:

Program control unit. Refer to 12 14 705 PROGRAMMING CONTROL UNIT (DME/DDE) .
Code control unit.

Remove right fresh air duct. Refer to 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.

Fig 1: Locating Cover In Control Unit Box

G03292178

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Insert tabs (1) in openings (2) and close cover.

Fig 2: Identifying Tabs And Openings In Cover

G03292179

Courtesy of BMW OF NORTH AMERICA, INC.

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.

Fig 3: View Of Plug Connections On HDEV Control Unit

G03292180

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble vehicle.

Check function of DME.