6120900 Disconnecting and connecting battery negative lead: Notes
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2011 BMW 328xi, 2011 BMW 328i, 2011 BMW 323i, 2010 BMW 335xi, and 2010 BMW 335i. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Observe SAFETY INSTRUCTIONS for handling vehicle battery.
Follow INSTRUCTIONS for disconnecting and connecting battery
Follow INSTRUCTIONS for disconnecting and connecting battery
IMPORTANT:
Do not under any circumstances use force to pull/lever off INTELLIGENT BATTERY SENSOR (IBS) .