On my Renault Master there is a button marked Kg & when I press it the speedo display lights up'Kg'. The manual says:> Load position When the vehicle is driven laden, press the switch on the dashboard. The indicator light will light up Kg on the instrument panel. Load mode is deselected every time the engine is switched off. It will be necessary to select it again. Load mode may be used to equal effect in both automatic andmanual modes. BUT what does it do :Confused::Confused: Tried it on & off but can't tell any differnece.