12 14 550 Replacing Control Unit (Digital Motor Electronics) (N62)

WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.

Switch off ignition.

Follow instructions for disconnecting and connecting battery. See 12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY .

Disconnect battery.

CAUTION: Follow instructions for removing and installing 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. See 12 14 700 CODING CONTROL MODULE (DME / DDE) .

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.

Fig 1: Identifying Holder, Cover And Seal

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

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

Fig 2: Identifying Tabs

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and detach plug connections on DME control unit (2).

Remove DME control unit (2).

Fig 3: Identifying Valvetronic Control Unit

Courtesy of BMW OF NORTH AMERICA, INC.