Sedan; Sport Suspension. A Shock absorber is a device that controls the Spring oscillations when the vehicle goes over various road irregularities, so the vehicle's tires remain in contact with the road. In some cases, Shock absorbers have a secondary function as a suspension limiter to prevent the suspension from either over-extending and/or over-compressing. Sport Suspension. Suspension Strut and Coil Spring Assembly. Air. Damper AND -. Suspension Absorber.