Arnott's new Mercedes-Benz E-Class Wagon coil spring conversion kit was exclusively designed for the E-Class Wagon with rear air suspension only (without ADS). This kit converts the rear air springs of the vehicle to a reliable coil spring suspension system. Arnott's springs are designed to give the E-Class Wagon a smooth ride, comparable to the original air suspension. These aftermarket springs fit perfectly in the seat without welding or modifying the original suspension. The Mercedes-Benz E-Class suspension conversion kit features powder-coated coil springs made from American-made steel along with top and bottom mounts. The instructions that come in your conversion kit box include detailed instructions on how to turn off the dash air suspension warning lights.