Automatic leveling system on Mercedes Sprinter 3500 chassis

I, too have the HWH kick-down type levelers. They paid for themselves the first time I pulled into an RV park when it was pouring rain. I also added a TPMS system after I drove some part of my last 300 mile leg home with a giant nail but no air in an inside rear dually. And I carry a mounted spare in the rear storage compartment. Plenty of room once I removed all the tools that I don't know how to use anyway. The ones I do know how to use fit in a small tool box along with my GS Roadside Assistance card.