61 20 900 Disconnecting and connecting battery negative lead
WARNING:
Observe safety instructions
for handling vehicle battery.
Follow instructions on intelligent battery sensor (IBS) .
Follow instructions for disconnecting and connecting battery .
Follow instructions on intelligent battery sensor (IBS) .
Necessary preliminary tasks:
- Remove battery cover
IMPORTANT:
Do not under any circumstances detach or lever off intelligent battery sensor (2) from battery by force.
Loosen nut (1). Tightening torque, see 61 21 1AZ in 61 21 BATTERY WITH TERMINAL .
Remove intelligent battery sensor (2) from battery and secure to side.