The M.O.T. Inspection Manual Issue Date 01 January 2012 LastPage                     NextPage                     Contents                     Back                     Forward                     Home                      3.10    Brake Efficiency Table (Vehicles with 4 or more wheels) MINIMUM BRAKE EFFICIENCIES REQUIRED PARKING BRAKE VEHICLES WITH 4 OR MORE WHEELS (Excluding quadricycles – see Section 9.3) SERVICE BRAKE Vehicles with a single line service brake system Vehicles with a split (dual) service brake system Passenger vehicles with 4 or more wheels, with not more than 8 passenger seats in addition to the driver’s seat, having a service brake (foot-brake) operating on at least 4 wheels and a parking (handbrake) operating on at least 2 wheels. 50% 25% 16% Goods vehicles in Classes 4 or 7 50% 25% 16% Passenger vehicles with 4 or more wheels, with more than 8 passenger seats in addition to the driver’s seat, having a service brake (foot-brake) operating on at least 4 wheels and a parking (handbrake) operating on at least 2 wheels which were first used: On or after 1 January 1968 50% 25% 16% Before 1 January 1968 45% 20% Not specified (see Note 1) Vehicles first used before 1 January 1968 which do NOT have one means of control operating on at least 4 wheels and which have one brake system with two means of control or two brake systems with separate means of control. 30% from first means of control 25% from second means of control Vehicles first used before 1 January 1915. One efficient braking system required. Note 1: The parking brake on these vehicles must be capable of preventing at least two wheels from rotating when the vehicle is stationary.  There is no specified efficiency requirement.