Overview - Engine/Motor Coolant Temperature Sensor

Fig 1: Engine Coolant Temperature Sensor Components Location

Courtesy of AUDI OF AMERICA, LLC

1. Clip
   • Check for secure fit
2. O-Ring
   • Replace after removing
   • Coat with coolant
3. Engine Coolant Temperature Sensor on Radiator Outlet -G83-
   • Removing and Installing. Refer to Engine Coolant Temperature Sensor on Radiator Outlet -G83-, REMOVING AND INSTALLING .
4. O-Ring
   • Allocation. Refer to Fig 2.
   • Coat with coolant
5. Centering Ring
   • Allocation. Refer to Fig 2.
   • Coat with coolant
6. Bolt
   • Replace after removing
   • 4 Nm +45°
7. Engine Coolant Temperature Sensor -G62-
   • on transmission side of the cylinder head
   • Removing and Installing. Refer to Engine Coolant Temperature Sensor -G62-, REMOVING AND INSTALLING .

Allocation of the O-ring/centering ring

Fig 2: Allocation of the O-Ring/Centering Ring

Courtesy of AUDI OF AMERICA, LLC

• Check the centering ring -1- for damage, if it is, then replace the engine coolant temperature sensor.
• Always replace the O-ring -2- after disassembly.