Division 5.4

A deviation of more than 50 % between the average reagent consumption and the average demanded reagent consumption by the engine system over a period of 30 minutes of vehicle operation, shall result in the activation of the driver warning system in section 3, which shall display a message indicating an appropriate warning (e.g. ‘urea dosing malfunction’, ‘AdBlue dosing malfunction’, or ‘reagent dosing malfunction’). If the reagent consumption is not rectified within 50 km of the activation of the warning system then the driver inducement requirements of section 8 shall apply.