WABCO's straightforward, modular Electronically Controlled Air Suspension (ECAS) system for trailers offers clear benefits for both the vehicle owner and the vehicle manufacturer. Its benefits over leafspring suspension systems - such as improved operating and driving comfort, load protection and a constant chassis level - have been further enhanced by several useful system extensions. ECAS is an air suspension system and lifting axle control which meets a broad range of requirements. It essentially consists of a pre-wired ECU, a level sensor, a solenoid valve and a remote control unit. If combined with WABCO's Vario Compact ABS for trailers (VCSII) or the Electronically Controlled Braking System for trailers, Trailer EBS D , ECAS facilitates easy and quick installation and a reliable diagnosis. ECAS is also easy to service via WABCO's extensive service network. Main ECAS functions are also included in the new Trailer EBS E Modulator and can easily be accessed.