Necessary preliminary tasks

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 BMW 328xi, 2012 BMW 328i, 2011 BMW 328xi, 2011 BMW 328i, and 2010 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

Remove FLAP in luggage compartment panel on right
Remove BATTERY COVER
Disconnect BATTERY NEGATIVE LEAD
Remove DISTRIBUTION BOX

Unlock positive terminal cover (1) and remove.

Fig 1: Removing Positive Terminal Cover

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Do not under any circumstances pull/lever safety battery terminal off by force.
Battery crash element must be reinstalled!

On vehicles from build date 12/2006 or when IBS is replaced since 12/2006, battery crash element has been removed without replacement (IBS2006 replaces IBS2004 from 12/2006)

Detach vent (1) in direction of arrow.

Release nut (6) of safety battery terminal (2).

Tightening torque 61 21 1AZ .

Detach safety battery terminal (2) towards top, lay to one side and secure.

Release threaded pin (5) and remove holder with battery crash element (4).

Fold back both bar fasteners (3) and pull battery towards rear out of associated fixture.

Fig 2: Detaching Vent And Safety Battery Terminal

Courtesy of BMW OF NORTH AMERICA, INC.

Lift out battery.

Installation:

Make sure battery is correctly seated in associated fixture.

Replacement:

Read out fault memory, clear if necessary
On vehicles with IBS (intelligent battery sensor) REGISTER BATTERY REPLACEMENT