This paper is aimed on the possibility of modeling, simulation and diagnostics of the suspension system of passenger cars. A simplified dynamic model of the car suspension system is defined. The model transformation into the Matlab – Simulink environment is described for the purpose of suspension system performance analysis. Following are examples of modeling and simulation of vehicle suspension in Autodesk Inventor Professional and control of the technical condition of the vehicle shock absorber using the test equipment MAHA MSD 3000th.