fits e.g. VW Golf IV (1J1) (please check exact vehicle application) HELLA intake air temperature sensors use NTC thermistor technology to provide accurate air temperature data to the ECU for optimized combustion control. Measures temperature in the suction pipe and helps regulate air-fuel mixture and ignition timing for improved engine performance. Contributes to higher engine power, lower fuel consumption, and reduced emissions, while supporting longer engine life. Manufactured to ideal quality standards - Built to withstand vibration, dirt, and harsh conditions, ensuring long-term performance, durability, and seamless integration in modern engine systems. Please check OEM number to ensure correct fitment for your vehicle.