Coolant temperature sensor
The coolant-temperature sensor is bolted to the front of the cylinder head and it picks up the coolant temperature via its changeable resistance.
The coolant temperature serves as a measured variable for the following functions:
- Exhaust-gas recirculation
- Fuel injection rate calculation
- Activation condition for air conditioning system
- Activation condition of the radiator shutter (not MINI)
- Electric auxiliary heater activation condition
- Charging pressure control
- Glow-period control
- Electric fan activation
- Swirl flap activation (not MINI)
- Idle-speed control
- Rail pressure control