11 37 700 Replacing Control Unit (VALVETRONIC)

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.

Observe following instructions before replacing control unit:

Program control unit. See 12 14 705 PROGRAMMING CONTROL UNIT (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 And Cover Screws

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Installation:

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

Fig 2: Identifying Tabs

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Unlock and detach plug connections on Valvetronic control unit (1).

Remove Valvetronic control unit (1).

Fig 3: Identifying Valvetronic Control Unit

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NOTE: Interrogate fault memory of DME control unit.

Check stored fault messages.

Rectify faults.

Then clear fault memory.