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

IMPORTANT: Read and comply with notes on protection against electrostatic discharge (ESD PROTECTION) .

Necessary preliminary tasks: 

Release clips (1) and fold up storage shelf (2).

Fig 1: Identifying Storage Shelf With Clamps
G09950153Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten plug connection (1) and disconnect.

Release retaining lug (2).

Pull out control unit for trailer coupling release (3) towards the top in direction of arrow.

Installation note: 

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

Fig 2: Identifying Retaining Lug And Plug Connection
G09950273Courtesy of BMW OF NORTH AMERICA, INC.

Replacement: 

Perform an initialization in the procedure or manual initialization via the button in the luggage compartment. The manual initialization is described in the procedure.