Statistical data set
Top 10 prohibition defects as a percentage of all cars inspected at roadside
Updated 17 September 2026
Download CSV 29.9 KB
| Financial year | Period | Defect type | Defects as a percentage of all vehicles inspected |
|---|---|---|---|
| 2026 to 2027 | Quarter 1: April to June | Running gear - condition of tyres | 23.42% |
| 2026 to 2027 | Quarter 1: April to June | Running gear - road wheels and hubs | 12.61% |
| 2026 to 2027 | Quarter 1: April to June | Brakes - warning systems | 10.81% |
| 2026 to 2027 | Quarter 1: April to June | Seat belts and supplementary restraint system | 8.11% |
| 2026 to 2027 | Quarter 1: April to June | Engine and associated equipment - exhaust emission | 5.41% |
| 2026 to 2027 | Quarter 1: April to June | Bodywork - windscreen and windows | 4.50% |
| 2026 to 2027 | Quarter 1: April to June | Brakes - mechanical components | 4.50% |
| 2026 to 2027 | Quarter 1: April to June | Lamps and reflectors - direction indicators | 4.50% |
| 2026 to 2027 | Quarter 1: April to June | Bodywork - registration plates and VIN details | 3.60% |
| 2026 to 2027 | Quarter 1: April to June | Engine and associated equipment - exhaust system | 3.60% |
| 2026 to 2027 | Quarter 1: April to June | Suspension - springs | 3.60% |
| 2025 to 2026 | Quarter 4: January to March | Running gear - condition of tyres | 30.10% |
| 2025 to 2026 | Quarter 4: January to March | Bodywork - windscreen and windows | 8.74% |
| 2025 to 2026 | Quarter 4: January to March | Running gear - road wheels and hubs | 8.74% |
| 2025 to 2026 | Quarter 4: January to March | Engine and associated equipment - exhaust emission | 7.77% |
| 2025 to 2026 | Quarter 4: January to March | Bodywork - registration plates and VIN details | 5.83% |
| 2025 to 2026 | Quarter 4: January to March | Engine and associated equipment - exhaust system | 5.83% |
| 2025 to 2026 | Quarter 4: January to March | Lamps and reflectors - direction indicators | 5.83% |
| 2025 to 2026 | Quarter 4: January to March | Brakes - warning systems | 4.85% |
| 2025 to 2026 | Quarter 4: January to March | Seat belts and supplementary restraint system | 4.85% |
| 2025 to 2026 | Quarter 4: January to March | Lamps, reflectors and electrical equipment | 2.91% |
| 2025 to 2026 | Quarter 3: October to December | Running gear - condition of tyres | 21.14% |
| 2025 to 2026 | Quarter 3: October to December | Engine and associated equipment - exhaust system | 12.20% |
| 2025 to 2026 | Quarter 3: October to December | Bodywork - windscreen and windows | 11.38% |
| 2025 to 2026 | Quarter 3: October to December | Bodywork - registration plates and VIN details | 7.32% |
| 2025 to 2026 | Quarter 3: October to December | Lamps, reflectors and electrical equipment | 7.32% |
| 2025 to 2026 | Quarter 3: October to December | Running gear - road wheels and hubs | 7.32% |
| 2025 to 2026 | Quarter 3: October to December | Brakes - warning systems | 6.50% |
| 2025 to 2026 | Quarter 3: October to December | Engine and associated equipment - exhaust emission | 3.25% |
| 2025 to 2026 | Quarter 3: October to December | Seat belts and supplementary restraint system | 3.25% |
| 2025 to 2026 | Quarter 3: October to December | Lamps and reflectors - direction indicators | 2.44% |
| 2025 to 2026 | Quarter 3: October to December | Suspension - springs | 2.44% |
| 2025 to 2026 | Quarter 3: October to December | Transmission - un-categorised defects | 2.44% |
| 2025 to 2026 | Quarter 2: July to September | Running gear - condition of tyres | 24.07% |
| 2025 to 2026 | Quarter 2: July to September | Bodywork - windscreen and windows | 7.41% |
| 2025 to 2026 | Quarter 2: July to September | Engine and associated equipment - exhaust emission | 6.48% |
| 2025 to 2026 | Quarter 2: July to September | Engine and associated equipment - exhaust system | 6.48% |
| 2025 to 2026 | Quarter 2: July to September | Bodywork - registration plates and VIN details | 5.56% |
| 2025 to 2026 | Quarter 2: July to September | Lamps and reflectors - direction indicators | 5.56% |
| 2025 to 2026 | Quarter 2: July to September | Brakes - warning systems | 3.70% |
| 2025 to 2026 | Quarter 2: July to September | Seat belts and supplementary restraint system | 3.70% |
| 2025 to 2026 | Quarter 2: July to September | Brakes - parking brake operation and perfomance | 2.78% |
| 2025 to 2026 | Quarter 2: July to September | Engine and associated equipment - fuel tank and system | 2.78% |
| 2025 to 2026 | Quarter 2: July to September | Running gear - road wheels and hubs | 2.78% |
| 2025 to 2026 | Quarter 2: July to September | Transmission - un-categorised defects | 2.78% |
| 2025 to 2026 | Quarter 1: April to June | Running gear - condition of tyres | 32.94% |
| 2025 to 2026 | Quarter 1: April to June | Lamps and reflectors - direction indicators | 8.82% |
| 2025 to 2026 | Quarter 1: April to June | Bodywork - registration plates and VIN details | 7.65% |
| 2025 to 2026 | Quarter 1: April to June | Bodywork - windscreen and windows | 7.06% |
| 2025 to 2026 | Quarter 1: April to June | Engine and associated equipment - exhaust emission | 7.06% |
| 2025 to 2026 | Quarter 1: April to June | Running gear - road wheels and hubs | 7.06% |
| 2025 to 2026 | Quarter 1: April to June | Seat belts and supplementary restraint system | 5.88% |
| 2025 to 2026 | Quarter 1: April to June | Engine and associated equipment - exhaust system | 5.29% |
| 2025 to 2026 | Quarter 1: April to June | Brakes - parking brake operation and perfomance | 4.12% |
| 2025 to 2026 | Quarter 1: April to June | Brakes - warning systems | 4.12% |
| 2024 to 2025 | Quarter 4: January to March | Running gear - condition of tyres | 21.48% |
| 2024 to 2025 | Quarter 4: January to March | Engine and associated equipment - exhaust system | 10.74% |
| 2024 to 2025 | Quarter 4: January to March | Bodywork - windscreen and windows | 8.05% |
| 2024 to 2025 | Quarter 4: January to March | Bodywork - registration plates and VIN details | 7.38% |
| 2024 to 2025 | Quarter 4: January to March | Lamps and reflectors - direction indicators | 7.38% |
| 2024 to 2025 | Quarter 4: January to March | Lamps, reflectors and electrical equipment | 5.37% |
| 2024 to 2025 | Quarter 4: January to March | Brakes - mechanical components | 4.70% |
| 2024 to 2025 | Quarter 4: January to March | Brakes - warning systems | 4.70% |
| 2024 to 2025 | Quarter 4: January to March | Engine and associated equipment - exhaust emission | 4.70% |
| 2024 to 2025 | Quarter 4: January to March | Seat belts and supplementary restraint system | 4.70% |
| 2024 to 2025 | Quarter 3: October to December | Suspension - springs | 4.70% |
| 2024 to 2025 | Quarter 3: October to December | Seat belts and supplementary restraint system | 8.77% |
| 2024 to 2025 | Quarter 3: October to December | Bodywork - registration plates and VIN details | 8.19% |
| 2024 to 2025 | Quarter 3: October to December | Engine and associated equipment - exhaust system | 7.02% |
| 2024 to 2025 | Quarter 3: October to December | Running gear - road wheels and hubs | 7.02% |
| 2024 to 2025 | Quarter 3: October to December | Engine and associated equipment - exhaust emission | 6.43% |
| 2024 to 2025 | Quarter 3: October to December | Brakes - warning systems | 5.85% |
| 2024 to 2025 | Quarter 3: October to December | Lamps and reflectors - direction indicators | 5.26% |
| 2024 to 2025 | Quarter 3: October to December | Bodywork - windscreen and windows | 4.68% |
| 2024 to 2025 | Quarter 3: October to December | Lamps, reflectors and electrical equipment | 4.09% |
| 2024 to 2025 | Quarter 2: July to September | Running gear - condition of tyres | 20.33% |
| 2024 to 2025 | Quarter 2: July to September | Engine and associated equipment - exhaust system | 11.38% |
| 2024 to 2025 | Quarter 2: July to September | Bodywork - registration plates and VIN details | 8.13% |
| 2024 to 2025 | Quarter 2: July to September | Bodywork - windscreen and windows | 6.50% |
| 2024 to 2025 | Quarter 2: July to September | Running gear - road wheels and hubs | 6.50% |
| 2024 to 2025 | Quarter 2: July to September | Engine and associated equipment - exhaust emission | 4.88% |
| 2024 to 2025 | Quarter 2: July to September | Lamps and reflectors - direction indicators | 4.07% |
| 2024 to 2025 | Quarter 2: July to September | Brakes - controls | 2.44% |
| 2024 to 2025 | Quarter 2: July to September | Brakes - warning systems | 2.44% |
| 2024 to 2025 | Quarter 2: July to September | Brakes - mechanical components | 1.63% |
| 2024 to 2025 | Quarter 2: July to September | Electrical equipment - horn | 1.63% |
| 2024 to 2025 | Quarter 2: July to September | Lamps and reflectors - direction indicators | 1.63% |
| 2024 to 2025 | Quarter 2: July to September | Lamps and reflectors - headlamps | 1.63% |
| 2024 to 2025 | Quarter 2: July to September | Lamps, reflectors and electrical equipment | 1.63% |
| 2024 to 2025 | Quarter 2: July to September | Seat belts and supplementary restraint system | 1.63% |
| 2024 to 2025 | Quarter 2: July to September | Steering - power steering | 1.63% |
| 2024 to 2025 | Quarter 2: July to September | Suspension - springs | 1.63% |
| 2024 to 2025 | Quarter 2: July to September | Transmission - un-categorised defects | 1.63% |
| 2024 to 2025 | Quarter 2: July to September | Uncategorised | 1.63% |
| 2024 to 2025 | Quarter 2: July to September | Vehicle interior - drivers area and fittings | 1.63% |
| 2024 to 2025 | Quarter 1: April to June | Running gear - condition of tyres | 23.40% |
| 2024 to 2025 | Quarter 1: April to June | Engine and associated equipment - exhaust system | 15.60% |
| 2024 to 2025 | Quarter 1: April to June | Lamps and reflectors - direction indicators | 8.51% |
| 2024 to 2025 | Quarter 1: April to June | Transmission - un-categorised defects | 7.80% |
| 2024 to 2025 | Quarter 1: April to June | Bodywork - windscreen and windows | 6.38% |
| 2024 to 2025 | Quarter 1: April to June | Brakes - parking brake operation and perfomance | 5.67% |
| 2024 to 2025 | Quarter 1: April to June | Brakes - mechanical components | 4.96% |
| 2024 to 2025 | Quarter 1: April to June | Running gear - road wheels and hubs | 4.96% |
| 2024 to 2025 | Quarter 1: April to June | Bodywork - registration plates and VIN details | 4.26% |
| 2024 to 2025 | Quarter 1: April to June | Seat belts and supplementary restraint system | 4.26% |
| 2023 to 2024 | Quarter 4: January to March | Running gear - condition of tyres | 29.63% |
| 2023 to 2024 | Quarter 4: January to March | Engine and associated equipment - exhaust emission | 11.11% |
| 2023 to 2024 | Quarter 4: January to March | Running gear - road wheels and hubs | 8.89% |
| 2023 to 2024 | Quarter 4: January to March | Bodywork - windscreen and windows | 8.15% |
| 2023 to 2024 | Quarter 4: January to March | Seat belts and supplementary restraint system | 7.41% |
| 2023 to 2024 | Quarter 4: January to March | Lamps and reflectors - direction indicators | 6.67% |
| 2023 to 2024 | Quarter 4: January to March | Lamps, reflectors and electrical equipment | 5.93% |
| 2023 to 2024 | Quarter 4: January to March | Bodywork - registration plates and VIN details | 5.19% |
| 2023 to 2024 | Quarter 4: January to March | Brakes - mechanical components | 5.19% |
| 2023 to 2024 | Quarter 4: January to March | Suspension - springs | 4.44% |
| 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 and 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 and VIN details | 2.63% |
| 2022 to 2023 | Quarter 4: January to March | Suspension - suspension arms and linkages and 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 and 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 and 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 and 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 and 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 and 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 and 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 and 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 and 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 and 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 and 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% |
| 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 and 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 and 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 and 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 and 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 and 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 and 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 and 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% |