Statistical data set

Top 10 prohibition defects as a percentage of all cars inspected at roadside

Updated 4 April 2024
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Financial year Period Defect type Defects as a percentage of all vehicles inspected
2023 to 2024 Quarter 3: October to December Running Gear - Condition of Tyres 18.25%
2023 to 2024 Quarter 3: October to December Engine and Associated Equipment - Exhaust system 8.75%
2023 to 2024 Quarter 3: October to December Bodywork - Windscreen and Windows 5.70%
2023 to 2024 Quarter 3: October to December Lamps and reflectors - Direction Indicators 4.56%
2023 to 2024 Quarter 3: October to December Engine and Associated Equipment - Exhaust emission 3.80%
2023 to 2024 Quarter 3: October to December Brakes - Warning Systems 3.04%
2023 to 2024 Quarter 3: October to December Lamps and reflectors - Headlamps 2.66%
2023 to 2024 Quarter 3: October to December Running Gear - Road wheels and Hubs 2.66%
2023 to 2024 Quarter 3: October to December Lamps, reflectors and electrical equipment 2.28%
2023 to 2024 Quarter 3: October to December Seat belts and Supplementary Restraint System 2.28%
2023 to 2024 Quarter 2: July to September Running Gear - Condition of Tyres 9.93%
2023 to 2024 Quarter 2: July to September Engine and Associated Equipment - Exhaust system 4.71%
2023 to 2024 Quarter 2: July to September Bodywork - Windscreen and Windows 3.47%
2023 to 2024 Quarter 2: July to September Seat belts and Supplementary Restraint System 2.23%
2023 to 2024 Quarter 2: July to September Bodywork - Registration Plates & VIN Details 1.99%
2023 to 2024 Quarter 2: July to September Running Gear - Road wheels and Hubs 1.99%
2023 to 2024 Quarter 2: July to September Engine and Associated Equipment - Exhaust emission 1.74%
2023 to 2024 Quarter 2: July to September Brakes - Warning Systems 1.49%
2023 to 2024 Quarter 2: July to September Lamps and reflectors - Direction Indicators 1.24%
2023 to 2024 Quarter 2: July to September Lamps, reflectors and electrical equipment 1.24%
2023 to 2024 Quarter 1: April to June Running Gear - Condition of Tyres 17.33%
2023 to 2024 Quarter 1: April to June Engine and Associated Equipment - Exhaust system 4.95%
2023 to 2024 Quarter 1: April to June Bodywork - Windscreen and Windows 3.96%
2023 to 2024 Quarter 1: April to June Brakes - Mechanical components 3.47%
2023 to 2024 Quarter 1: April to June Lamps, reflectors and electrical equipment 2.97%
2023 to 2024 Quarter 1: April to June Engine and Associated Equipment - Exhaust emission 2.48%
2023 to 2024 Quarter 1: April to June Suspension - Springs 2.48%
2023 to 2024 Quarter 1: April to June Transmission - Un-categorised defects 1.98%
2023 to 2024 Quarter 1: April to June Brakes - Parking Brake Operation and Perfomance 1.49%
2023 to 2024 Quarter 1: April to June Running Gear - Road wheels and Hubs 1.49%
2023 to 2024 Quarter 1: April to June Steering - Steering Linkage 1.49%
2023 to 2024 Quarter 1: April to June Uncategorised 1.49%
2022 to 2023 Quarter 4: January to March Running Gear - Condition of Tyres 22.37%
2022 to 2023 Quarter 4: January to March Running Gear - Road wheels and Hubs 9.87%
2022 to 2023 Quarter 4: January to March Lamps and reflectors - Direction Indicators 6.58%
2022 to 2023 Quarter 4: January to March Lamps, reflectors and electrical equipment 5.92%
2022 to 2023 Quarter 4: January to March Engine and Associated Equipment - Exhaust system 5.26%
2022 to 2023 Quarter 4: January to March Seat belts and Supplementary Restraint System 3.95%
2022 to 2023 Quarter 4: January to March Brakes - Mechanical components 3.29%
2022 to 2023 Quarter 4: January to March Brakes - Warning Systems 3.29%
2022 to 2023 Quarter 4: January to March Engine and Associated Equipment - Exhaust emission 3.29%
2022 to 2023 Quarter 4: January to March Bodywork - Registration Plates & VIN Details 2.63%
2022 to 2023 Quarter 4: January to March Suspension - Suspension Arms & Linkages & Sub-frames 2.63%
2022 to 2023 Quarter 3: October to December Running Gear - Condition of Tyres 20.56%
2022 to 2023 Quarter 3: October to December Running Gear - Road wheels and Hubs 9.27%
2022 to 2023 Quarter 3: October to December Bodywork - Windscreen and Windows 8.87%
2022 to 2023 Quarter 3: October to December Lamps and reflectors - Direction Indicators 7.26%
2022 to 2023 Quarter 3: October to December Engine and Associated Equipment - Exhaust emission 5.24%
2022 to 2023 Quarter 3: October to December Engine and Associated Equipment - Exhaust system 5.24%
2022 to 2023 Quarter 3: October to December Bodywork - Registration Plates & VIN Details 4.84%
2022 to 2023 Quarter 3: October to December Lamps, reflectors and electrical equipment 4.03%
2022 to 2023 Quarter 3: October to December Brakes - Warning Systems 3.63%
2022 to 2023 Quarter 3: October to December Brakes - Mechanical components 3.23%
2022 to 2023 Quarter 3: October to December Lamps and reflectors - Headlamps 3.23%
2022 to 2023 Quarter 3: October to December Seat belts and Supplementary Restraint System 3.23%
2022 to 2023 Quarter 2: July to September Running Gear - Condition of Tyres 20.62%
2022 to 2023 Quarter 2: July to September Engine and Associated Equipment - Exhaust system 8.59%
2022 to 2023 Quarter 2: July to September Running Gear - Road wheels and Hubs 7.22%
2022 to 2023 Quarter 2: July to September Bodywork - Windscreen and Windows 5.84%
2022 to 2023 Quarter 2: July to September Engine and Associated Equipment - Exhaust emission 5.84%
2022 to 2023 Quarter 2: July to September Seat belts and Supplementary Restraint System 4.47%
2022 to 2023 Quarter 2: July to September Lamps, reflectors and electrical equipment 3.78%
2022 to 2023 Quarter 2: July to September Brakes - Warning Systems 3.09%
2022 to 2023 Quarter 2: July to September Bodywork - Registration Plates & VIN Details 2.41%
2022 to 2023 Quarter 2: July to September Lamps and reflectors - Headlamps 2.41%
2022 to 2023 Quarter 1: April to June Running Gear - Condition of Tyres 20.95%
2022 to 2023 Quarter 1: April to June Engine and Associated Equipment - Exhaust system 9.50%
2022 to 2023 Quarter 1: April to June Bodywork - Windscreen and Windows 8.38%
2022 to 2023 Quarter 1: April to June Running Gear - Road wheels and Hubs 7.54%
2022 to 2023 Quarter 1: April to June Engine and Associated Equipment - Exhaust emission 6.15%
2022 to 2023 Quarter 1: April to June Lamps and reflectors - Direction Indicators 4.47%
2022 to 2023 Quarter 1: April to June Bodywork - Registration Plates & VIN Details 3.35%
2022 to 2023 Quarter 1: April to June Seat belts and Supplementary Restraint System 2.79%
2022 to 2023 Quarter 1: April to June Lamps, reflectors and electrical equipment 2.51%
2022 to 2023 Quarter 1: April to June Lamps and reflectors - Headlamps 2.23%
2021 to 2022 Quarter 4: January to March Running Gear - Condition of Tyres 15.14%
2021 to 2022 Quarter 4: January to March Bodywork - Registration Plates & VIN Details 11.16%
2021 to 2022 Quarter 4: January to March Bodywork - Windscreen and Windows 11.16%
2021 to 2022 Quarter 4: January to March Engine and Associated Equipment - Exhaust system 9.96%
2021 to 2022 Quarter 4: January to March Engine and Associated Equipment - Exhaust emission 7.97%
2021 to 2022 Quarter 4: January to March Lamps, reflectors and electrical equipment 5.18%
2021 to 2022 Quarter 4: January to March Running Gear - Road wheels and Hubs 5.18%
2021 to 2022 Quarter 4: January to March Lamps and reflectors - Headlamps 3.59%
2021 to 2022 Quarter 4: January to March Seat belts and Supplementary Restraint System 3.59%
2021 to 2022 Quarter 4: January to March Bodywork - Body Panelling 2.79%
2021 to 2022 Quarter 4: January to March Brakes - Warning Systems 2.79%
2021 to 2022 Quarter 3: October to December Running Gear - Condition of Tyres 20.43%
2021 to 2022 Quarter 3: October to December Bodywork - Windscreen and Windows 10.75%
2021 to 2022 Quarter 3: October to December Engine and Associated Equipment - Exhaust system 10.75%
2021 to 2022 Quarter 3: October to December Running Gear - Road wheels and Hubs 7.53%
2021 to 2022 Quarter 3: October to December Engine and Associated Equipment - Exhaust emission 6.09%
2021 to 2022 Quarter 3: October to December Lamps, reflectors and electrical equipment 5.02%
2021 to 2022 Quarter 3: October to December Bodywork - Registration Plates & VIN Details 4.66%
2021 to 2022 Quarter 3: October to December Lamps and reflectors - Headlamps 4.66%
2021 to 2022 Quarter 3: October to December Lamps and reflectors - Direction Indicators 4.30%
2021 to 2022 Quarter 3: October to December Seat belts and Supplementary Restraint System 3.23%
2021 to 2022 Quarter 2: July to September Running Gear - Condition of Tyres 9.83%
2021 to 2022 Quarter 2: July to September Bodywork - Windscreen and Windows 3.49%
2021 to 2022 Quarter 2: July to September Engine and Associated Equipment - Exhaust system 3.17%
2021 to 2022 Quarter 2: July to September Running Gear - Road wheels and Hubs 2.69%
2021 to 2022 Quarter 2: July to September Brakes - Mechanical components 1.90%
2021 to 2022 Quarter 2: July to September Engine and Associated Equipment - Exhaust emission 1.74%
2021 to 2022 Quarter 2: July to September Bodywork - Registration Plates & VIN Details 1.58%
2021 to 2022 Quarter 2: July to September Seat belts and Supplementary Restraint System 1.43%
2021 to 2022 Quarter 2: July to September Lamps and reflectors - Direction Indicators 1.27%
2021 to 2022 Quarter 2: July to September Lamps, reflectors and electrical equipment 1.11%
2021 to 2022 Quarter 1: April to June Running Gear - Condition of Tyres 12.19%
2021 to 2022 Quarter 1: April to June Bodywork - Windscreen and Windows 5.63%
2021 to 2022 Quarter 1: April to June Running Gear - Road wheels and Hubs 3.75%
2021 to 2022 Quarter 1: April to June Engine and Associated Equipment - Exhaust system 3.13%
2021 to 2022 Quarter 1: April to June Brakes - Parking Brake Operation and Perfomance 1.88%
2021 to 2022 Quarter 1: April to June Brakes - Warning Systems 1.88%
2021 to 2022 Quarter 1: April to June Engine and Associated Equipment - Exhaust emission 1.88%
2021 to 2022 Quarter 1: April to June Lamps, reflectors and electrical equipment 1.88%
2021 to 2022 Quarter 1: April to June Seat belts and Supplementary Restraint System 1.88%
2021 to 2022 Quarter 1: April to June Bodywork - Registration Plates & VIN Details 1.56%
2020 to 2021 Quarter 4: January to March Running Gear - Condition of Tyres 26.67%
2020 to 2021 Quarter 4: January to March Bodywork - Windscreen and Windows 13.33%
2020 to 2021 Quarter 4: January to March Running Gear - Road wheels and Hubs 13.33%
2020 to 2021 Quarter 4: January to March Bodywork - Registration Plates & VIN Details 12.00%
2020 to 2021 Quarter 4: January to March Lamps and reflectors - Direction Indicators 12.00%
2020 to 2021 Quarter 4: January to March Engine and Associated Equipment - Exhaust system 9.33%
2020 to 2021 Quarter 4: January to March Suspension - Springs 6.67%
2020 to 2021 Quarter 4: January to March Seat belts and Supplementary Restraint System 5.33%
2020 to 2021 Quarter 4: January to March Bodywork - Body Panelling 4.00%
2020 to 2021 Quarter 4: January to March Brakes - Mechanical components 4.00%
2020 to 2021 Quarter 3: October to December Running Gear - Condition of Tyres 29.60%
2020 to 2021 Quarter 3: October to December Bodywork - Windscreen and Windows 12.00%
2020 to 2021 Quarter 3: October to December Running Gear - Road wheels and Hubs 8.00%
2020 to 2021 Quarter 3: October to December Lamps and reflectors - Headlamps 7.20%
2020 to 2021 Quarter 3: October to December Brakes - Warning Systems 5.60%
2020 to 2021 Quarter 3: October to December Transmission - Un-categorised defects 4.80%
2020 to 2021 Quarter 3: October to December Bodywork - Registration Plates & VIN Details 4.00%
2020 to 2021 Quarter 3: October to December Engine and Associated Equipment - Exhaust emission 4.00%
2020 to 2021 Quarter 3: October to December Engine and Associated Equipment - Exhaust system 4.00%
2020 to 2021 Quarter 3: October to December Seat belts and Supplementary Restraint System 3.20%
2020 to 2021 Quarter 2: July to September Running Gear - Condition of Tyres 13.56%
2020 to 2021 Quarter 2: July to September Steering - Steering Linkage 5.08%
2020 to 2021 Quarter 2: July to September Bodywork - Body Panelling 3.39%
2020 to 2021 Quarter 2: July to September Engine and Associated Equipment - Exhaust emission 3.39%
2020 to 2021 Quarter 2: July to September Running Gear - Road wheels and Hubs 3.39%
2020 to 2021 Quarter 2: July to September All lamps 1.69%
2020 to 2021 Quarter 2: July to September Bodywork - Registration Plates & VIN Details 1.69%
2020 to 2021 Quarter 2: July to September Bodywork - Windscreen and Windows 1.69%
2020 to 2021 Quarter 2: July to September Brakes - Mechanical components 1.69%
2020 to 2021 Quarter 2: July to September Brakes - Parking Brake Operation and Perfomance 1.69%
2020 to 2021 Quarter 1: April to June Running Gear - Condition of Tyres 8.82%
2020 to 2021 Quarter 1: April to June Lamps, reflectors and electrical equipment 2.94%
2020 to 2021 Quarter 1: April to June Not set Not set
2020 to 2021 Quarter 1: April to June Not set Not set
2020 to 2021 Quarter 1: April to June Not set Not set
2020 to 2021 Quarter 1: April to June Not set Not set
2020 to 2021 Quarter 1: April to June Not set Not set
2020 to 2021 Quarter 1: April to June Not set Not set
2020 to 2021 Quarter 1: April to June Not set Not set
2020 to 2021 Quarter 1: April to June Not set Not set
2019 to 2020 Quarter 4: January to March Running Gear - Condition of Tyres 24.60%
2019 to 2020 Quarter 4: January to March Engine and Associated Equipment - Exhaust system 8.90%
2019 to 2020 Quarter 4: January to March Bodywork - Windscreen and Windows 8.10%
2019 to 2020 Quarter 4: January to March Running Gear - Road wheels and Hubs 6.90%
2019 to 2020 Quarter 4: January to March Seat belts and Supplementary Restraint System 4.00%
2019 to 2020 Quarter 4: January to March Lamps and reflectors - Direction Indicators 2.80%
2019 to 2020 Quarter 4: January to March Transmission - Un-categorised defects 2.80%
2019 to 2020 Quarter 4: January to March Brakes - Warning Systems 2.40%
2019 to 2020 Quarter 4: January to March Engine and Associated Equipment - Exhaust emission 2.40%
2019 to 2020 Quarter 4: January to March Brakes - Controls 2.00%
2019 to 2020 Quarter 3: October to December Running Gear - Condition of Tyres 23.20%
2019 to 2020 Quarter 3: October to December Engine and Associated Equipment - Exhaust system 6.40%
2019 to 2020 Quarter 3: October to December Bodywork - Windscreen and Windows 7.80%
2019 to 2020 Quarter 3: October to December Running Gear - Road wheels and Hubs 4.20%
2019 to 2020 Quarter 3: October to December Engine and Associated Equipment - Exhaust emission 6.40%
2019 to 2020 Quarter 3: October to December Seat belts and Supplementary Restraint System 3.00%
2019 to 2020 Quarter 3: October to December Lamps and reflectors - Headlamps 1.80%
2019 to 2020 Quarter 3: October to December Transmission - Un-categorised defects 2.00%
2019 to 2020 Quarter 3: October to December Lamps and reflectors - Direction Indicators 4.40%
2019 to 2020 Quarter 3: October to December Brakes - Warning Systems 1.60%
2019 to 2020 Quarter 2: July to September Running Gear - Condition of Tyres 18.20%
2019 to 2020 Quarter 2: July to September Engine and Associated Equipment - Exhaust system 11.40%
2019 to 2020 Quarter 2: July to September Bodywork - Windscreen and Windows 7.10%
2019 to 2020 Quarter 2: July to September Running Gear - Road wheels and Hubs 5.10%
2019 to 2020 Quarter 2: July to September Engine and Associated Equipment - Exhaust emission 4.10%
2019 to 2020 Quarter 2: July to September Seat belts and Supplementary Restraint System 4.10%
2019 to 2020 Quarter 2: July to September Bodywork - Registration Plates & VIN Details 3.60%
2019 to 2020 Quarter 2: July to September Transmission - Un-categorised defects 3.40%
2019 to 2020 Quarter 2: July to September Lamps and reflectors - Direction Indicators 3.20%
2019 to 2020 Quarter 2: July to September Brakes - Warning Systems 2.80%
2019 to 2020 Quarter 1: April to June Running Gear - Condition of Tyres 24.72%
2019 to 2020 Quarter 1: April to June Engine and Associated Equipment - Exhaust system 13.48%
2019 to 2020 Quarter 1: April to June Bodywork - Windscreen and Windows 9.83%
2019 to 2020 Quarter 1: April to June Running Gear - Road wheels and Hubs 6.46%
2019 to 2020 Quarter 1: April to June Lamps and Reflectors - Direction Indicators 5.62%
2019 to 2020 Quarter 1: April to June Transmission - Un-categorised defects 5.34%
2019 to 2020 Quarter 1: April to June Brakes - Warning Systems 4.49%
2019 to 2020 Quarter 1: April to June Seat belts and Supplementary Restraint System 3.37%
2019 to 2020 Quarter 1: April to June Brakes - Mechanical Components 3.09%
2019 to 2020 Quarter 1: April to June Lamps and reflectors - Headlamps 2.81%
2018 to 2019 Total Running Gear - Condition of Tyres 22.90%
2018 to 2019 Total Bodywork - Windscreen and Windows 7.30%
2018 to 2019 Total Running Gear - Road wheels and Hubs 6.00%
2018 to 2019 Total Engine and Associated Equipment - Exhaust system 5.30%
2018 to 2019 Total Lamps and Reflectors - Direction Indicators 5.20%
2018 to 2019 Total Seat belts and Supplementary Restraint System 4.40%
2018 to 2019 Total Brakes - Warning Systems 3.40%
2018 to 2019 Total Bodywork - Registration Plates & VIN Details 2.90%
2018 to 2019 Total Lamps and reflectors - Headlamps 2.60%
2018 to 2019 Total Transmission - Un-categorised defects 2.50%
2017 to 2018 Total Running Gear - Condition of Tyres 20.10%
2017 to 2018 Total Bodywork - Windscreen and Windows 8.80%
2017 to 2018 Total Running Gear - Road wheels and Hubs 5.20%
2017 to 2018 Total Engine and Associated Equipment - Exhaust system 9.60%
2017 to 2018 Total Lamps and Reflectors - Direction Indicators 3.50%
2017 to 2018 Total Seat belts and Supplementary Restraint System 2.80%
2017 to 2018 Total Brakes - Warning Systems 3.10%
2017 to 2018 Total Bodywork - Registration Plates & VIN Details 1.10%
2017 to 2018 Total Lamps and reflectors - Headlamps 1.90%
2017 to 2018 Total Transmission - Un-categorised defects 3.30%
2016 to 2017 Total Running Gear - Condition of Tyres 29.20%
2016 to 2017 Total Bodywork - Windscreen and Windows 8.10%
2016 to 2017 Total Running Gear - Road wheels and Hubs 6.90%
2016 to 2017 Total Engine and Associated Equipment - Exhaust system 6.30%
2016 to 2017 Total Lamps and Reflectors - Direction Indicators 4.80%
2016 to 2017 Total Seat belts and Supplementary Restraint System 1.90%
2016 to 2017 Total Brakes - Warning Systems 2.40%
2016 to 2017 Total Bodywork - Registration Plates & VIN Details 1.20%
2016 to 2017 Total Lamps and reflectors - Headlamps 1.00%
2016 to 2017 Total Transmission - Un-categorised defects 3.30%
2015 to 2016 Total Running Gear - Condition of Tyres 29.80%
2015 to 2016 Total Bodywork - Windscreen and Windows 12.00%
2015 to 2016 Total Running Gear - Road wheels and Hubs 5.00%
2015 to 2016 Total Engine and Associated Equipment - Exhaust system 7.20%
2015 to 2016 Total Lamps and Reflectors - Direction Indicators 3.80%
2015 to 2016 Total Transmission - Un-categorised defects 3.10%
2015 to 2016 Total Bodywork - Registration Plates & VIN Details 2.60%
2015 to 2016 Total Vehicle Interior - Seat Belts 1.70%
2015 to 2016 Total Brakes - Parking Brake Operation and Perfomance 1.90%
2015 to 2016 Total Steering - Steering Linkage 2.60%
2014 to 2015 Total Running Gear - Condition of Tyres 29.00%
2014 to 2015 Total Bodywork - Windscreen and Windows 18.40%
2014 to 2015 Total Running Gear - Road wheels and Hubs 4.00%
2014 to 2015 Total Engine and Associated Equipment - Exhaust system 6.00%
2014 to 2015 Total Lamps and Reflectors - Direction Indicators 3.00%
2014 to 2015 Total Transmission - Un-categorised defects 3.20%
2014 to 2015 Total Bodywork - Registration Plates & VIN Details 2.10%
2014 to 2015 Total Vehicle Interior - Seat Belts 1.50%
2014 to 2015 Total Brakes - Parking Brake Operation and Perfomance 1.70%
2014 to 2015 Total Steering - Steering Linkage 1.40%
2013 to 2014 Total Running Gear - Condition of Tyres 31.20%
2013 to 2014 Total Bodywork - Windscreen and Windows 19.30%
2013 to 2014 Total Running Gear - Road wheels and Hubs 4.20%
2013 to 2014 Total Engine and Associated Equipment - Exhaust system 6.40%
2013 to 2014 Total Lamps and Reflectors - Direction Indicators 3.30%
2013 to 2014 Total Transmission - Un-categorised defects 3.10%
2013 to 2014 Total Bodywork - Registration Plates & VIN Details 2.40%
2013 to 2014 Total Vehicle Interior - Seat Belts 1.50%
2013 to 2014 Total Brakes - Parking Brake Operation and Perfomance 1.40%
2013 to 2014 Total Steering - Steering Linkage 1.40%