61 12 013 Replace battery earth lead

WARNING: Observe safety informations for handling vehicle battery. See 6120... INFORMATION ON AGM BATTERY or 6100... NOTES FOR DISCONNECTING AND CONNECTING BATTERY .
Follow instructions on intelligent battery sensor (IBS) .

Necessary preliminary tasks:

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.

Fig 1: Negative Battery Terminal Slacken Nut

Courtesy of BMW OF NORTH AMERICA, INC.

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

Disconnect plug connection (2).

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

Tightening torque: 61 21 6AZ .