61 21 010 Removing And Installing/Replacing Battery

WARNING: This page is about a different car, the 2010 BMW X5, 2009 BMW X5, 2008 BMW X5, and 2007 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Observe safety instructions for handling vehicle battery. See 61 00... SAFETY INSTRUCTIONS FOR HANDLING VEHICLE BATTERY .
Notes and instructions on Intelligent Battery Sensor IBS . See 61 12... GENERAL INFORMATION ON INTELLIGENT BATTERY SENSOR (IBS) .

IMPORTANT: Do not under any circumstances pull/lever safety battery terminal off by force.

Necessary preliminary tasks:

Disconnect negative battery cable . See 61 20 900 DISCONNECTING AND CONNECTING BATTERY NEGATIVE LEAD .
Remove distribution box . See 61 13 042 REPLACING DISTRIBUTION BOX (LUGGAGE COMPARTMENT) .

Detach vent (1) in direction of arrow.

Unlock positive terminal cover (2).

Slacken nut (3) of safety battery terminal.

Tightening torque. See GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES .

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

Release threaded pin (4).

Release screw (6) and remove holder.

Release screw (5) and remove holder.

Lift out battery.

Fig 1: Detaching Vent

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Make sure battery is correctly seated in associated fixture.

Replacement:

Version with Intelligent Battery Sensor:

Carry out programming/coding . See VEHICLE PROGRAMMING AND CODING .
Code Car Access System (CAS) and delete fault memory entries relating to battery replacement in engine control unit.