303.04.0140 Compatible ECAS Height Sensor — Volvo & Renault

What does an ECAS height sensor do?

An ECAS height sensor is a critical component within the electronic controlled air suspension system of heavy commercial vehicles. It functions by providing electronic position sensing through rotary or linkage-driven signals to the ECU, allowing the system to maintain optimal vehicle height during operation.

Compatible vehicles and engines

This sensor is compatible with Volvo models including FH12, FH13, FH16, FM series, FMX, NH12, VHD, VNL, and B-series buses. It is also fitted to Renault Trucks models such as Kerax, Magnum, and Premium. These components are essential for maintaining stability and load distribution in heavy-duty applications.

Installation and maintenance

For proper installation and maintenance, technicians should ensure the sensor linkage is clean and free of debris. When replacing these sensors, it is important to verify that the mounting position is correct to prevent signal errors in the suspension ECU. This part is compatible with Knorr-Bremse and Bosch systems.

Troubleshooting and selection

Regular inspection of the sensor housing can prevent premature failure caused by road debris or vibration. Maintaining the integrity of the connection ensures consistent performance across various load conditions. Consult your authorized distributor.

OE cross-reference

303.04.0140 (ECAS Height Sensor) is the equivalent of the Bosch, Knorr-Bremse, Renault Trucks and Volvo OE numbers. This part directly replaces Bosch OE number 0504002112000. It also replaces Knorr-Bremse OE numbers K013741N00, K013741N07, K013741N57, Renault Trucks OE number 7420850557 and Volvo OE number 20850557.