Description Removal of lock nuts on thermo Viscous fans Allows the technician to hold the water pump pulley in place while loosening the radiator fan for removal of the visco-coupling on the cooling fan. Special open-ended spanner to allow removal and replacement of the radiator fan hub. The three-in-one design allows servicing of three separate areas of repair (which all require a specialty tool due to their confined locations). Blow molded case for easy storage and transport. Application: For Mercedes-Benz BMW Ford and many other vehicles. Kit Inclundes: 1- For Mercedes-Benz Fan Clutch Wrench 65mm Opening .