61 20 900 Disconnecting and connecting battery negative lead

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Observe SAFETY INFORMATIONS for handling vehicle battery.
Follow instructions for DISCONNECTING AND CONNECTING BATTERY .
Observe notes on VOLTAGE SUPPLY /on intelligent battery sensor (IBS).

Necessary preliminary work:

Remove LUGGAGE COMPARTMENT FLOOR TRIM PANEL .

Removal:

Release clamps (1).

Fold up storage shelf (2).

Fig 1: Identifying Storage Shelf With Clamps

Courtesy of BMW OF NORTH AMERICA, INC.

Loosen nut (1).

Detach battery negative lead with IBS towards top, lay to one side and secure.

IMPORTANT: Do not under any circumstances use force to pull off negative terminal.

Fig 2: Identifying Battery Earth Lead Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Insert battery earth lead with IBS and tighten with nuts (1).

Tightening torque 61 21 1AZ .

Fig 3: Identifying Battery Earth Lead Nut

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Insert storage shelf (2) and fasten with clips (1).

Fig 4: Identifying Storage Shelf With Clamps

Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work:

Install luggage compartment floor trim panel