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 units .

Necessary preliminary tasks:

Read fault memory.
Disconnect battery negative lead .
Remove electronics box fan.
Remove distribution box (passenger compartment). See 61 13 040 REPLACING DISTRIBUTION BOX (PASSENGER COMPARTMENT (5-SERIES) or 61 13 040 REPLACING DISTRIBUTION BOX (PASSENGER COMPARTMENT) (6-SERIES).
Release control unit holder; if necessary, release CD changer.

Release screws (arrows) behind sound insulation.

Disconnect wiring harness on engine compartment side on right.

Remove electronics box.

Fig 1: Locating Wiring Harness On Engine Compartment Side On Right

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Make sure gasket (1) is correctly seated on electronics box.

Read fault memory.

Fig 2: Identifying Electronics Box

Courtesy of BMW OF NORTH AMERICA, INC.