Eberspacher Airtronic S3 D2L M3 D4L D4R Diesel Heater Temperature Sensor | 252953994000

The Eberspacher Airtronic S3 D2L M3 D4L D4R Temperature Sensor is a precision component for diesel heaters, ensuring accurate readings and safe operation. Designed to detect sensor interruption or short circuits with fault codes P000100–P000116, it helps prevent overheating and hardware/software threshold issues. Compatible with AS3 D2L 12V/24V, M3 D4L, D4R models, including ADR and VDP variants, this sensor fits both 12V and 24V configurations. Easy to replace and critical for reliable climate control in vehicles, it supports safe pre-heat and cabin comfort. Selecting the right sensor reduces diagnostic time and protects the heater from thermal stress, delivering consistent performance across installations.