Hi, I am getting an intermittent Airmatic fault. Haven't had it on a fault code reader so no idea if it's minor or serious. What I am trying to understand is what i might have to change if it proves to be serious. If I understand it correctly the front struts incorporate both the spring and the damper. At the rear you seem to get an air spring unit - one of these? https://www.arnottindustries.com/part_MERCEDES-BENZ_yid18_pid200.html But what about the damper at the rear - is it a sperate part? Can't find it anywhere on any of the parts sites I've been searching. Ta.