61 21 010 Removing And Installing Or Replacing Battery

WARNING: This page is about a different car, the 2007 BMW 550i and 2006 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

Observe SAFETY INSTRUCTIONS for handling vehicle battery.

Observe notes on power supply / on intelligent battery sensor (IBS).

Necessary preliminary tasks:

Disconnect battery negative lead

Security version:

Remove PROTECTIVE COVER from distribution box/battery positive terminal (luggage compartment)

Disconnect plug connection (1) of IBS cable.

Unscrew nut (3). Tightening torque: 61 21 1AZ . See BATTERY WITH TERMINAL for specs.

IMPORTANT:

Do not under any circumstances pull/lever safety battery terminal (2) off by force.

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

Release nuts (4) and remove rollover protection (5).

Fig 1: Identifying Plug Connection Of IBS Cable

Courtesy of BMW OF NORTH AMERICA, INC.

Release threaded pin (1) and remove holder (2).

Detach vent (4) in direction of arrow.

Fold both clips (3) open.

Pull battery (5) back from front fixture and remove towards top.

Installation:

Make sure battery (5) is correctly seated in front fixture.

Fig 2: Identifying Threaded Pin And Holder

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Read out fault memory, clear if necessary
Register battery replacement