Install battery ground lead

• Position battery ground lead (3).
• Tighten nut (2).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Battery ground lead to body
  Flange nut M8	Tightening torque	15 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Connect connector (1) with the intelligent battery sensor (IBS).

Follow-up work 

• Reconnect all battery GROUND LEADS .