61 20 900 Disconnecting and connecting battery negative lead

WARNING: This page is about a different car, the 2016 BMW Z4, 2015 BMW Z4, and 2014 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

Observe SAFETY INFORMATION FOR HANDLING VEHICLE BATTERY .

Follow notes for DISCONNECTING AND CONNECTING BATTERY .

Comply with notes on INTELLIGENT BATTERY SENSOR (IBS) .

Necessary preliminary work:

Remove FRONT LUGGAGE COMPARTMENT FLOOR TRIM PANEL

Loosen nut (1).

Tightening torque 61 21 1AZ .

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

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

Fig 1: Identifying Battery Negative Lead Nut

Courtesy of BMW OF NORTH AMERICA, INC.

At BMW diagnosis system:

Carry out STEERING ANGLE SENSOR ADJUSTMENT .