Coil springs. The coil spring as a spring is made of a steel rod coiled in the shape of a helix. The spring is compressed under load. The upper part of the spring-spring rests on the parts connected to the car body, while the lower part of the spring presses on the road wheel suspension elements. A compression-only coil spring shall not be a rocker arm. The steering knuckle is connected to the upper arm and the lower arm by means of appropriate joints. The spring spring presses against the lower wishbone. Cars have a front wheel suspension with a coil spring pressing on the lower control arm: Warsaw, Moskvich, Volga, Skoda, Renault R-8 and others. In Polski Fiat 125P and Fiat cars 1300 The steering knuckle of the front wheel is also suspended on two transverse wishbones, but the spring is pushing against the upper rocker. Inside the coil springs (springs) telescopic shock absorbers are placed.