This manual is a detailed guide to the inspection for statutory MOT testing of the following classes:
||Three-wheeled vehicles not exceeding 450kg ULW (excluding motorcycle combinations) - category L2 or L5
||Three-wheeled vehicles more than 450kg ULW - category L5
Quadricycles - category L6 or L7
Cars and Taxis - category M1
Minibuses, motor caravans, dual purpose vehicles and ambulances up to 12 passenger seats - category M1 or M2
American pickups up to 6500kg DGW
Goods vehicles not exceeding 3,000kg DGW - category N1
||Private passenger vehicles, ambulances and motor caravans with 13 or more passenger seats - category M2 or M3
||Goods vehicles between 3,001kg and 3,500kg DGW inclusive - category N1
Please note: If a goods vehicle is presented with a manufacturer’s plate and a ‘ministry plate’ the weights to be used are those on the ‘ministry plate’
Diagram 1. Example of a class 4 manufacturer’s plate
Some plates may not state the axle number, but vehicle weights will generally be displayed in this order.
Some manufacturers plates may not display a Design Train Weight (DTW) as they have not been designed or constructed to tow trailers.
Some Class 7 testing stations are approved to test Class 5 vehicles with a DGW up to 5,000kg referred to as Class 5L (category M2). Class 5L does not include any vehicle that must have a seatbelt installation check. Such vehicles must be presented at a Class 5A testing station.
Definitions of sub-Classes 4A and 5A are given in the MOT Testing Guide.
Dual purpose vehicles are defined in the MOT testing guide. The unladen weight of a dual-purpose vehicle must not exceed 2,040kg. However, 4 × 4 pickup vehicles with a DGW over 3,000kg up to and including 3,500kg are considered dual purpose vehicles for test purposes if information about the unladen weight is not available.
American pickup means a motor vehicle manufactured in the United States of America or Canada that meets all of the following criteria:
- it’s capable of carrying a driver and at least one passenger
- it’s capable of carrying goods in an open load bed separate from the driver/passenger compartment, with or without a removable cover
- it has a gross design weight over 3,000kg but does not exceed 6,500kg
Pickup vehicles with a fifth-wheel should not be considered articulated vehicles. They should be tested as normal.
To determine the seating capacity of a passenger vehicle, the number of occupied wheelchairs that can be carried should be added to the number of seats.
Other than for the inspection of tyres, any 2 wheels of a vehicle shall be regarded as one wheel if the distance between the centres of the areas of contact between such wheels and the road surface is less than 460mm. You should be aware that this may affect the test class. For example, a three-wheeled vehicle with a wheel layout meeting this criterion must be tested as a motorcycle.
Tricycle and quadricycle test classes
|three-wheeled moped (L2)
||Three-wheeled vehicle with a max speed of 45km/h, not over 50cc for a petrol engine or 4KW for any other engine or electric motor, not more than 450kg ULW
|motor tricycle (L5)
||Three-wheeled vehicle with wheels symmetrically arranged, a max speed over 45km/h, or engine size over 50cc, not more than 450kg ULW
|motor tricycle (L5)
||Three-wheeled vehicle with wheels symmetrically arranged with a max speed over 45km/h, or engine size over 50cc, more than 450kg ULW
|light quadricycle (L6)
||Four-wheeled vehicle with a max ULW of 350kg, max speed of 45km/h and not over 50cc for a petrol engine or 4KW for any other engine or electric motor
||Four-wheeled vehicle with a max ULW of 400kg (550kg for a goods vehicle) with a max net power of 15KW
If any of the above vehicles are electrically powered, their unladen weight must not include the weight of the batteries.
If there is significant doubt about the power output or the weight of the vehicle, the presenter must provide documentary evidence.
If the vehicle is too heavy or powerful to qualify as an L7 quadricycle it is an M1 vehicle and must be tested as if it was a car, for example, it must meet the full lighting, brake efficiency and emissions requirements