The air suspension makes it possible to adjust the road clearance without using any physical effort. The air suspension includes reinforced pneumatic elements (or pneumatic cylinders), springs and shocks. There are three types of suspensions: single-circuit type (installed on one axle), double-circuit type (capable of adjusting the height of the front and rear of the vehicle relative to each other), four-circuit type (has the ability to control each wheel separately). The general principle for installing the air suspension is as follows: the wheels are removed from the car springs and struts, then the air bags are attached to the mountings and, finally, the struts with air bags are installed on the prepared places. Assembling and installing air suspension requires appropriate skills and knowledge.