12 90... Removing and installing/replacing electronics box

WARNING: This page is about a different car, the 2013 BMW X5 M, 2012 BMW X5 M, 2011 BMW X5 M, and 2010 BMW X5 M. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DAMAGE (ESD PROTECTION) .

NOTE: Follow instructions for removing and installing electronic control units

Necessary preliminary tasks

Read fault memory.
Disconnect BATTERY NEGATIVE LEAD .
Remove ELECTRONICS BOX FAN .
Remove DISTRIBUTION BOX (PASSENGER COMPARTMENT) .
Release control unit holder.

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

Fig 1: Identifying Electronic Box Rubber Grommets

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Release screws (arrows).

Disconnect wiring harness on engine compartment side on right.

Remove electronics box.

Fig 2: Locating Electronic Box Mounting Screws

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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: Identifying Electronic Box Gasket

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement (E70 - Security):

Pay attention to engine compartment protective features.