12 90... Removing and Installing/Replacing Electronics Box

IMPORTANT: Read and comply with notes on protection against electrostatic damage (ESD protection). See 61 35... NOTES ON ESD PROTECTION (ELECTRO STATIC DISCHARGE)

NOTE: Follow instructions for removing and installing electronic control

Necessary preliminary tasks:

Read fault memory.
Disconnect negative battery cable. See 61 20 900 DISCONNECTING AND CONNECTING BATTERY NEGATIVE LEAD .
Remove electronics box fan. See 12 90 100 Replacing Fan For Electronics Box
Remove distribution box (passenger compartment). See 61 13 050 REMOVING AND INSTALLING/REPLACING INTERIOR FUSE BOX
Release control unit holder

Pull rubber grommets out of electronics box. Disconnect all plug connections.

Fig 1: Pull Rubber Grommets Out Of Electronics Box

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (arrows).

Disconnect wiring harness on engine compartment side on right.

Remove electronics box.

Fig 2: Release Screws At Arrows

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Installation:

Make sure gasket (1) is correctly seated on electronics box. Add final details to vehicle.

Read fault memory.

Fig 3: Make Sure Gasket (1) Is Correctly Seated On Electronics Box

Courtesy of BMW OF NORTH AMERICA, INC.