Secure the potential equalization line

WARNING: Potential equalization in high-voltage system. 
Mortal hazard if the potential equalization screw connection is not correct! 

• Observe the safety requirements for the potential equalization screw connection.
• Clean contact faces and have then checked by a second person.
• Tighten the screws/nuts for potential equalization with torque; have a second person check the torque.
• Correct execution of these tasks must be documented in the vehicle records by both persons.

Courtesy of BMW OF NORTH AMERICA, INC.

• Position the potential equalization line (2) on the high-voltage battery unit.
• Tighten nut (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Potential equalization nut
  Nut M8	tightening torque	20.5 Nm