Install coolant temperature sensor on the coolant radiator

• Check sealing ring (1) for damage, replace if necessary.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Insert and install the coolant temperature sensor (3).
• Ensure that the locks (2) engage audibly.
• Connect and lock the connector (1).
• Make sure the connector (1) engages audibly.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Loosen sealing cap (1).

  Courtesy of BMW OF NORTH AMERICA, INC.

  NOTE: TECHNICAL INFORMATION 
  Follow notes for repair work on the cooling system.
  For additional information see:
  17 00 NOTES FOR REPAIR WORK ON THE COOLING SYSTEM

  Courtesy of BMW OF NORTH AMERICA, INC.

• Equate coolant level to the maximum marking (1) in the coolant expansion tank for maximum temperature (2).
• Shut sealing cap (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Refer to INSTALL RESONATOR .
• Refer to INSTALL THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
• Refer to INSTALLING THE UNDERBODY PROTECTION OF THE STEERING GEAR OR THE FRONT THRUST FIELD .