How do I adjust the rear air suspension on my Audi A8?

I have noticed that the rear of my Audi A8 is sitting lower than the front. I suspect that the rear air suspension may need to be adjusted. Can someone guide me on how to make these adjustments and what effect they may have on the handling and performance of my car?

The first step should be to check the pressure in your rear air suspension using a pressure gauge. The ideal pressure should be between 5-6 bar. If it is lower, you can add air using a compressor or at a gas station with an air pump. Make sure to add equal amounts of air on both sides to maintain balance. Also, keep in mind that over-inflating can cause stiffness in the suspension.