Updating the X5 vehicle “integration level”, the BMW term for updating the system software. The big red unit is our BMW ISTA Diagnostic cart, with the BMW Diagnostic and Programing computer. This system allows us to directly connect your vehicle to BMW’s computer servers, for diagnostics, or to check for and download the latest software. Note German Fronius Battery Stabilizer on side of cart. Cart is connected via WiFi, we simply wheel the cart up to you car, connect, and diagnose or program! As easy as updating your Microsoft Windows computer at home…maybe easier.