61 20 900 Disconnecting and connecting battery negative lead
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 battery cover or open right luggage compartment trim panel
Security version:
- Remove luggage compartment equipment carrier . See 65 95... REMOVING AND INSTALLING/REPLACING LUGGAGE COMPARTMENT EQUIPMENT CARRIER (SECURITY) .
Loosen nut (1).
Tightening torque, see 61 21 1AZ in 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.
Do not under any circumstances release socket-head cap screw of IBS.
Detach battery negative lead with IBS towards top, lay to one side and secure.