61 12 013 Replacing battery negative lead

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WARNING: Observe SAFETY INSTRUCTIONS for handling vehicle battery.
Read and comply with notes and instructions on INTELLIGENT BATTERY SENSOR .

Necessary preliminary tasks

Clamp off BATTERY NEGATIVE LEAD .
Remove LUGGAGE COMPARTMENT STORAGE COMPARTMENT .

Slacken nut (1) on negative battery terminal.

Tightening torque 61 21 1AZ .

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

Detach battery negative lead with intelligent battery sensor (IBS) in upward direction, lay to one side and secure.

Disconnect plug connection (2).

Release nut (3) and battery negative lead (4).

Fig 1: Identifying Battery With Nut, Plug Connection And Negative Lead

Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque 61 21 6AZ .