71 60 100 Removing and installing/replacing control unit for trailer coupling release

WARNING: This page does not describe the selected car, but rather 50 other vehicles, including the 2016 BMW M5, 2016 BMW ActiveHybrid 5, 2016 BMW 550i xDrive, 2016 BMW 550i, and 2016 BMW 535i xDrive. 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 discharge (ESD PROTECTION) .

Necessary preliminary tasks:

Remove LUGGAGE COMPARTMENT FLOOR TRIM PANEL

Release plastic nuts (1).

Feed out equipment holder (2) in direction of arrow.

Installation note:

Make sure equipment holder (2) is correctly seated.

Fig 1: Releasing Plastic Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten plug connection (1) and disconnect.

Release retaining lug (2).

Pull control unit for trailer coupling release (3) upwards out of the equipment holder.

Installation note:

Make sure control unit for trailer coupling release (3) if fitted correctly.

Fig 2: Identifying Trailer Coupling Release Control Unit And Retaining Lug

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Perform an initialization in the procedure or manual initialization via the button in the luggage compartment (see Operating Instructions). The manual initialization is described in the procedure.