Arnott's new Mercedes-Benz air suspension product line for the rear of the Mercedes R-Class (with AIRMATIC, with or without ADS) includes an air spring featuring a Continental ContiTech bladder tested and assembled in the USA. Arnott backs this Mercedes air spring with a Limited Lifetime Warranty! This aftermarket kit for the Mercedes R-Class comes complete with one rear air spring, new airline fitting, and new upper retaining pin.