Install electric heater

• Guide the electric heater (2) in toward the top.
• Connect and lock the coolant hoses (1) on the connections of the electric heater (2).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Guide the electric heater (1) in toward the top and clip it into the ball head (2).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Tighten down screw (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Electrical heating to holder/body
  Nut M6	Tightening torque	8 Nm
  Hexagon screw M6x16	Tightening torque	8 Nm
  Torx screw M6x12	Tightening torque	7.6 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Tighten the nut (2).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Electrical heating to holder/body
  Nut M6	Tightening torque	8 Nm
  Hexagon screw M6x16	Tightening torque	8 Nm
  Torx screw M6x12	Tightening torque	7.6 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

  NOTE: DANGER 
  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.
• Fit the equipotential bonding line and tighten nut (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Equipotential bonding line on body
  Hexagon nut M6	Tightening torque	8.0 Nm

• Connect connectors (2) and lock.
• Clip the high-voltage cable (3) in at the electric heater.
• Clip the high-voltage cable (1) in at the electric heater (2) at the marked points (3).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Clip the high-voltage cables (1) in at the electric heater (2) at the marked points (3).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Connect and lock the high-voltage connectors (1).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Insert and install the holder (2).
• Tighten down screws (1).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Position holder (2).
• Tighten down screw (1).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Guide in and install the high-voltage connector (2).
• Tighten the screws (1) crosswise up to the high-voltage connector (2).
• Tighten screws (1) crosswise.

  Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Fill the HIGH-TEMPERATURE COOLING SYSTEM with the vacuum filling equipment
• Vent the HIGH-TEMPERATURE COOLANT SYSTEM .
• Check the HIGH-TEMPERATURE COOLING SYSTEM for watertightness.
• Install rear UNDERBODY PROTECTION .
• Install the STIFFENING PLATE .
• ACTIVATE high-voltage system.
• Install flap in right luggage compartment TRIM PANEL .
• Reconnect all battery GROUND LEADS .