61 12 013 Replacing battery negative lead

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 BMW 535xi, 2010 BMW 535i, 2009 BMW 535xi, 2009 BMW 535i, and 2008 BMW 535xi. However, it is still accessible from the selected car via links, so may be relevant.

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

Necessary preliminary tasks:

Remove LUGGAGE COMPARTMENT TRIM ON SIDE PANEL ON RIGHT

Security version:

Remove luggage compartment equipment carrier

Slacken nut (1) on negative battery terminal.

Tightening torque 61 21 1AZ .

IMPORTANT: Do not under any circumstances use force to pull off pole shoe.
Do not under any circumstances release socket-head cap screw of IBS.

Fig 1: Identifying Plug Connection, Battery Negative Lead And Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Detach negative battery lead with intelligent battery sensor (IBS) in upward direction.

Disconnect plug connection (2).

Disconnect plug connection (3).

Release nut (4) and battery negative lead (5).

Tightening torque 61 21 2AZ .