Using your Bilstein B16 (PSS9) suspension kit is easy. First, make sure your vehicle is on a flat and stable surface. You can adjust the ride height according to your needs by using the threaded body. For the 9 - stage dampers, each click will change the rebound and compression settings. You can experiment to find the setting that suits your driving style and road conditions. When it comes to maintenance, regularly check the zinc - coated parts for any signs of damage or corrosion. Clean the dampers and springs occasionally with a mild soap and water solution. Avoid using harsh chemicals as they may damage the coating. If you notice any abnormal noises or handling issues, have the suspension system checked by a professional mechanic.