The pneumatic suspension on the back axle gives you a smoother ride by filtering out any bumps in the road surface.
The pneumatic suspension system gives you a safe and comfortable journey, every time. The system includes an ECU, an air supply unit, two height sensors and two pneumatic cushions. The height sensors measure your car's height - and when they spot a change in this, they tell the ECU, which then sends a message to the compressor to correct the distance and return your vehicle to its correct height.
It also adjusts the sill height when you're stopped to make your car easier to load, no matter how much weight you have on board.