61 20 900 Disconnecting and connecting battery negative lead
WARNING: This page is about a different car, the 2010 BMW X3, 2009 BMW X3, 2008 BMW X3, and 2007 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.
Follow instructions for disconnecting and connecting battery!
Observe notes on power supply / on intelligent battery sensor (IBS).
Follow instructions for disconnecting and connecting battery!
Observe notes on power supply / on intelligent battery sensor (IBS).
Necessary preliminary tasks:
- Remove luggage compartment floor trim panel with fitted mat, see 51 47 102 REMOVING AND INSTALLING/REPLACING LUGGAGE COMPARTMENT FLOOR TRIM PANEL
Version with intelligent battery sensor (IBS):
Loosen nut (1).
Tightening torque: 61 21 1AZ, see 61 21 BATTERY WITH TERMINAL .
IMPORTANT:
Do not under any circumstances use force to pull off pole shoe.
Do not under any circumstances release socket head cap screw of IBS (2).
Do not under any circumstances release socket head cap screw of IBS (2).
Detach battery negative lead (3) with IBS (2) in upward direction, lay to one side and secure.
Version without intelligent battery sensor (IBS):
Disconnect battery negative lead (1).
IMPORTANT:
Cover battery negative terminal post and secure negative lead (1) at side.
Tightening torque: 61 21 1AZ, see 61 21 BATTERY WITH TERMINAL .