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The coolant temperature sensor (CTS) is commonly found on modern injection engines. It measures the coolant (water) temperature in the engine itself, it is not to be confused with the thermostat as found on car radiators. The Engine Control Unit (ECU) uses the CTS value to calculate the ignition timing and injector pulse duration. The CTS is a thermistor that measures the temperature and sends a signal back to the ECU. The CTS is immersed in the engine coolant and contains a variable resistor that usually operates on the NTC (Negative Temperature Coefficient) principle. When the engine is cold the resistance increases. As the engine warms up, so too does the coolant and the resistance of the CTS decreases. This in turn returns a variable voltage signal to the ECU based upon the coolant temperature. A faulty temperature sensor can result in any of the following, - poorer fuel economy - trouble starting once the engine is up to operating temperature or black smoke from the tailpipe as well as triggering a fault code that will light up the engine dash warning light.


BRIEF APPLICATION: Audi, Seat, Ford, Skoda and Volkswagen

Housing Colour: BLACK 

No Of Pins: 2.

Spanner Size: 19mm


Cambiare VE375076
Fuel Parts (Uk) WS1072
Intermotor 55525
Lucas Electrical SNB851
Beckermann 6920117
Delphi WS2697
Fuel Parts (Marathon) FPWS1072
Kerr Nelson ECS013
Lemark LWS032
Motaquip VCT127
Serck Automotive CCT0026
H&m Automotive 12992783B
Herth+buss (Elparts) 70511534
Part no: PWS1072