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61 12 013 Replace battery earth lead

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WARNING: High-voltage system - danger to life!
The following points must be strictly observed prior to starting work  :
De-energize the HIGH-VOLTAGE SYSTEM .
Observe SAFETY INFORMATION for handling hybrid cars.
WARNING: Observe SAFETY INFORMATIONS for handling vehicle battery.
Read and comply with notes and notes on INTELLIGENT BATTERY SENSOR .

Necessary preliminary tasks: 

Slacken nut (1) on negative battery terminal.

Tightening torque 61 21 1AZ .

IMPORTANT: Do not under any circumstances use force to pull off negative terminal.

Detach battery earth lead with intelligent battery sensor (IBS) in upward direction, lay to one side and secure.

Disconnect plug connection (2).

Fig 1: Identifying Slacken Nut On Negative Battery Terminal
G09928490Courtesy of BMW OF NORTH AMERICA, INC.

Remove nut (1) and battery earth lead (2).

Tightening torque 61 21 6AZ .

Fig 2: Identifying Nut And Battery Earth Lead
G09928491Courtesy of BMW OF NORTH AMERICA, INC.