The Mahle FluidPRO ATX-3 Automatic Transmission Fluid Exchange System is ideal for technicians who drain the transmission pan before a major transmission repair. The machine’s built-in pressure gauges help technicians troubleshoot whether the problem is caused by something inside or outside of the transmission. Designed for ease of operation, the FluidPRO ATX features fully automatic operation. precision fluid measurement to minimize technician input, an electronic keypad, digital weight scale technology for accurate fluid exchange, logical intuitive command functions, transmission pressure diagnostics and a patented bypass circuit for vehicle protection if power is interrupted. This unit features two key modes of operation: Cooler Line mode and Dipstick Tube mode. Cooler Line Mode allows techs to hook up to the transmission cooler line with a no-drip quick coupler system. The ATX-3 automatically and continuously weighs the amount of fluid being pumped into the used fluid tank inside the machine. The Dipstick Tube Mode allows for insertion of the dipstick tube hose into the vehicle's dipstick tube. When the vehicle is started, the ATX-3 removes one quart of used fluid and replaces it with new fluid, repeating the process until the desired fluid exchange amount is reached.