61 20 900 Disconnecting And Connecting Battery Negative Lead

WARNING: This page is about a different car, the 2006 BMW X3, 2005 BMW X3, and 2004 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Observe safety instructions for handling vehicle battery. Refer to 61 00... SAFETY INSTRUCTIONS FOR HANDLING VEHICLE BATTERY .
Follow instructions for disconnecting and connecting battery. Refer to 12 00... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY .

Necessary preliminary tasks:

Remove LUGGAGE COMPARTMENT FLOOR TRIM PANEL

Disconnect battery negative lead (1).

Fig 1: Disconnecting Battery Negative Lead

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Cover battery negative terminal post and secure negative lead (1) at side.

tightening torque, 61 21 1AZ. Refer to GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES .