Installing auxiliary battery (engine compartment)

• Position the auxiliary battery on the battery holder (2)  with a screwdriver.
• Tighten down screw (1). 
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Battery terminal rail to battery tray
  M8 screw	19 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Position the battery holder.
• Tighten down screw (1). 
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Battery terminal rail to battery tray
  M8 screw	19 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Position the power connector (2). 
• Secure expanding rivet (1). 
• Position the connector (3)  and clip it in.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Position the positive battery terminal on the positive battery terminal.
• Tighten the nut (2)  on the positive battery terminal.
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Positive battery terminal
  Nut M6	5 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Position the auxiliary cable (1). 
• Tighten nut on auxiliary cable (1). 
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Positive battery cable
  Nut M6	5 Nm

• Position the vent hose (3). 

Follow-up work 

• Refer to CONNECT NEGATIVE BATTERY CABLE (ENGINE COMPARTMENT) .
• Refer to CONNECTING THE NEGATIVE BATTERY CABLE .
• Refer to CHECKING THE VENT HOLES OF THE BATTERY .
• Refer to ACTIVATING HIGH-VOLTAGE SYSTEM .
• Refer to INSTALLING THE FLAP IN THE RIGHT LUGGAGE COMPARTMENT TRIM PANEL .