61 20 900 Disconnecting and connecting battery negative lead
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 with fitted mat, refer to 51 47 101 REMOVING AND INSTALLING/REPLACING LUGGAGE COMPARTMENT FLOOR TRIM PANEL .
Version with intelligent battery sensor (IBS):
Slacken nut (1).
Tightening torque, refer to 61 21 1AZ in GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES - 645CI .
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).
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, refer to 61 21 1AZ in GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES - 645CI .