12 90 100 Replacing Fan For Electronics Box (N62)

NOTE: Read and print out fault memory with MoDiC or BMW DIS.

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 .

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

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Installation:

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

Fig 2: Identifying Tabs

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Unlock plug connections on Valvetronic control unit (1), DME control unit (2) and integrated supply module (3) and detach.

Remove Valvetronic control unit (1), DME control unit (2) and integrated supply module (3).

Unlock plug connection on fan for electronics box and detach.

Release both screws on control unit carrier and remove towards top.

Fig 3: Identifying Valvetronic Control Unit

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Unfasten screws.

Remove fan (1) for electronics box.

Fig 4: Identifying Fan For Electronics Box

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Read out fault memory of control unit of Digital Motor Electronics (DME).

Check stored fault messages.

Rectify faults.

Now clear the fault memory.