Dangerous defects found during the test (may 2018 mot inspection manual) are ca

From May 2018 onwards, MOT faults will be classified according to their level of severity with three categories: Minor, Major and Dangerous. Changes may still be made before the final manual is issued in May. New defect categorisations. Each defect found will be categorised as either. dangerous MoT Changes May 2018. Dangerous, Major and Minor defect categories to be introduced to MoT test in May, plus tougher emissions tests for diesel