12 14 550 Replacing electronics box (N47 D16/20 K/U/O/T 1)

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IMPORTANT: READ and comply with notes on protection against electrostatic damage (ESD protection)

Necessary preliminary tasks:

Switch off ignition.

IMPORTANT: FOLLOW INSTRUCTIONS FOR REMOVING AND INSTALLING CONTROL UNITS .

Partially loosen the rear gasket (1) for the engine compartment lid until the screw is accessible from the cover of the electronics box.

Release all screws along line (2).

Tightening torque 12 90 1AZ .

Remove the electronics box lid (3).

Fig 1: Identifying Engine Compartment Lid Rear Gasket And Electronics Box Lid

Courtesy of BMW OF NORTH AMERICA, INC.

Loosen all connectors and relay carriers (1) from the electronics box and set aside.

Installation note:

Make sure rubber grommets are correctly fitted (watertightness).

Fig 2: Identifying Relay Carriers And Electronics Box Connectors

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Tightening torque 12 90 2AZ .

Pull the electronics box from the rubber grommet and remove through the top.

Fig 3: Identifying Electronics Box Screws

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Check stored fault message.
Clear diagnostic fault entries from fault memory.