Statistical data set
MOT class 7 vehicles: initial failures by defect category
Updated 28 March 2024
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| Financial year | Period | Defect category | Overall % of tests | Overall % of defects | Dangerous defects % of tests | Dangerous defects % of defects | Major defects % of tests | Major defects % of defects |
|---|---|---|---|---|---|---|---|---|
| 2023 to 2024 | Quarter 3: October to December | Body, chassis, structure | 5.80% | 7.60% | 0.48% | 4.12% | 5.52% | 8.09% |
| 2023 to 2024 | Quarter 3: October to December | Brakes | 15.31% | 24.27% | 5.59% | 46.19% | 12.71% | 21.20% |
| 2023 to 2024 | Quarter 3: October to December | Identification of the vehicle | 0.59% | 0.57% | Not set | Not set | 0.59% | 0.65% |
| 2023 to 2024 | Quarter 3: October to December | Lamps, reflectors and electrical equipment | 19.12% | 29.45% | 0.43% | 2.97% | 18.96% | 33.16% |
| 2023 to 2024 | Quarter 3: October to December | Noise, emissions and leaks | 5.29% | 4.84% | 0.09% | 0.61% | 5.24% | 5.44% |
| 2023 to 2024 | Quarter 3: October to December | Road Wheels | 0.20% | 0.19% | 0.03% | 0.25% | 0.17% | 0.18% |
| 2023 to 2024 | Quarter 3: October to December | Seat belts and supplementary restraint systems | 1.92% | 1.95% | 0.10% | 0.70% | 1.84% | 2.12% |
| 2023 to 2024 | Quarter 3: October to December | Speedometer and speed limiter | 0.01% | 0.01% | Not set | Not set | 0.01% | 0.01% |
| 2023 to 2024 | Quarter 3: October to December | Steering | 3.33% | 3.32% | 0.22% | 1.63% | 3.16% | 3.56% |
| 2023 to 2024 | Quarter 3: October to December | Suspension | 10.01% | 14.73% | 1.02% | 8.30% | 9.45% | 15.63% |
| 2023 to 2024 | Quarter 3: October to December | Tyres | 5.40% | 6.01% | 3.97% | 34.98% | 1.67% | 1.94% |
| 2023 to 2024 | Quarter 3: October to December | Visibility | 6.94% | 7.06% | 0.04% | 0.26% | 6.92% | 8.01% |
| 2023 to 2024 | Quarter 3: October to December | Overall initial failure rate | 36.33% | Not set | 10.49% | Not set | 25.85% | Not set |
| 2023 to 2024 | Quarter 3: October to December | Average defects per initial test failure | Not set | 3.32 | Not set | 0.41 | Not set | 2.92 |
| 2023 to 2024 | Quarter 2: July to September | Body, chassis, structure | 5.86% | 7.87% | 0.43% | 3.66% | 5.61% | 8.44% |
| 2023 to 2024 | Quarter 2: July to September | Brakes | 14.93% | 23.81% | 5.39% | 46.87% | 12.41% | 20.67% |
| 2023 to 2024 | Quarter 2: July to September | Identification of the vehicle | 0.54% | 0.52% | Not set | Not set | 0.54% | 0.59% |
| 2023 to 2024 | Quarter 2: July to September | Lamps, reflectors and electrical equipment | 19.18% | 30.15% | 0.42% | 3.07% | 19.02% | 33.82% |
| 2023 to 2024 | Quarter 2: July to September | Noise, emissions and leaks | 5.02% | 4.63% | 0.08% | 0.55% | 4.98% | 5.18% |
| 2023 to 2024 | Quarter 2: July to September | Road Wheels | 0.21% | 0.20% | 0.03% | 0.25% | 0.19% | 0.20% |
| 2023 to 2024 | Quarter 2: July to September | Seat belts and supplementary restraint systems | 1.89% | 1.94% | 0.10% | 0.72% | 1.82% | 2.11% |
| 2023 to 2024 | Quarter 2: July to September | Speedometer and speed limiter | 0.01% | 0.01% | Not set | Not set | 0.01% | 0.01% |
| 2023 to 2024 | Quarter 2: July to September | Steering | 3.05% | 3.07% | 0.18% | 1.39% | 2.91% | 3.30% |
| 2023 to 2024 | Quarter 2: July to September | Suspension | 9.46% | 13.94% | 0.93% | 7.71% | 8.94% | 14.79% |
| 2023 to 2024 | Quarter 2: July to September | Tyres | 5.55% | 6.25% | 3.88% | 35.43% | 1.92% | 2.29% |
| 2023 to 2024 | Quarter 2: July to September | Visibility | 7.36% | 7.62% | 0.05% | 0.34% | 7.33% | 8.61% |
| 2023 to 2024 | Quarter 2: July to September | Overall initial failure rate | 36.16% | Not set | 10.12% | Not set | 26.05% | Not set |
| 2023 to 2024 | Quarter 2: July to September | Average defects per initial test failure | Not set | 3.30 | Not set | 0.39 | Not set | 2.90 |
| 2023 to 2024 | Quarter 1: April to June | Body, chassis, structure | 5.78% | 7.51% | 0.50% | 4.14% | 5.50% | 7.97% |
| 2023 to 2024 | Quarter 1: April to June | Brakes | 15.14% | 23.42% | 5.47% | 45.10% | 12.63% | 20.46% |
| 2023 to 2024 | Quarter 1: April to June | Identification of the vehicle | 0.61% | 0.56% | Not set | Not set | 0.61% | 0.64% |
| 2023 to 2024 | Quarter 1: April to June | Lamps, reflectors and electrical equipment | 20.08% | 30.65% | 0.47% | 3.20% | 19.92% | 34.39% |
| 2023 to 2024 | Quarter 1: April to June | Noise, emissions and leaks | 4.94% | 4.37% | 0.07% | 0.50% | 4.90% | 4.90% |
| 2023 to 2024 | Quarter 1: April to June | Road Wheels | 0.24% | 0.23% | 0.04% | 0.26% | 0.21% | 0.22% |
| 2023 to 2024 | Quarter 1: April to June | Seat belts and supplementary restraint systems | 1.96% | 1.95% | 0.11% | 0.77% | 1.87% | 2.11% |
| 2023 to 2024 | Quarter 1: April to June | Speedometer and speed limiter | 0.02% | 0.01% | Not set | Not set | 0.02% | 0.01% |
| 2023 to 2024 | Quarter 1: April to June | Steering | 2.97% | 2.85% | 0.18% | 1.32% | 2.83% | 3.06% |
| 2023 to 2024 | Quarter 1: April to June | Suspension | 9.59% | 13.88% | 1.05% | 8.48% | 9.02% | 14.62% |
| 2023 to 2024 | Quarter 1: April to June | Tyres | 5.78% | 6.25% | 4.11% | 35.83% | 1.96% | 2.22% |
| 2023 to 2024 | Quarter 1: April to June | Visibility | 8.17% | 8.32% | 0.06% | 0.40% | 8.13% | 9.40% |
| 2023 to 2024 | Quarter 1: April to June | Overall initial failure rate | 36.56% | Not set | 10.50% | Not set | 26.05% | Not set |
| 2023 to 2024 | Quarter 1: April to June | Average defects per initial test failure | Not set | 3.41 | Not set | 0.41 | Not set | 3 |
| 2022 to 2023 | Total | Body, chassis, structure | 6.04% | 7.80% | 0.53% | 4.38% | 5.74% | 8.27% |
| 2022 to 2023 | Total | Brakes | 15.06% | 22.81% | 5.44% | 44.54% | 12.49% | 19.83% |
| 2022 to 2023 | Total | Identification of the vehicle | 0.62% | 0.57% | Not set | Not set | 0.62% | 0.65% |
| 2022 to 2023 | Total | Lamps, reflectors and electrical equipment | 20.25% | 30.73% | 0.48% | 3.24% | 20.08% | 34.49% |
| 2022 to 2023 | Total | Noise, emissions and leaks | 4.84% | 4.27% | 0.09% | 0.62% | 4.79% | 4.76% |
| 2022 to 2023 | Total | Road Wheels | 0.22% | 0.20% | 0.04% | 0.27% | 0.19% | 0.19% |
| 2022 to 2023 | Total | Seat belts and supplementary restraint systems | 2.09% | 2.09% | 0.11% | 0.79% | 1.99% | 2.26% |
| 2022 to 2023 | Total | Speedometer and speed limiter | 0.01% | 0.01% | Not set | Not set | 0.01% | 0.01% |
| 2022 to 2023 | Total | Steering | 3.38% | 3.23% | 0.21% | 1.51% | 3.22% | 3.47% |
| 2022 to 2023 | Total | Suspension | 10.28% | 14.82% | 1.08% | 8.64% | 9.70% | 15.67% |
| 2022 to 2023 | Total | Tyres | 5.62% | 5.99% | 4.12% | 35.62% | 1.75% | 1.94% |
| 2022 to 2023 | Total | Visibility | 7.52% | 7.49% | 0.06% | 0.39% | 7.48% | 8.46% |
| 2022 to 2023 | Total | Overall initial failure rate | 36.77% | Not set | 10.60% | Not set | 26.17% | Not set |
| 2022 to 2023 | Total | Average defects per initial test failure | Not set | 3.43 | Not set | 0.41 | Not set | 3.01 |
| 2022 to 2023 | Quarter 4: January to March | Body, chassis, structure | 6.10% | 7.79% | 0.52% | 4.15% | 5.81% | 8.29% |
| 2022 to 2023 | Quarter 4: January to March | Brakes | 15.41% | 23.32% | 5.54% | 44.58% | 12.80% | 20.37% |
| 2022 to 2023 | Quarter 4: January to March | Identification of the vehicle | 0.60% | 0.55% | Not set | Not set | 0.60% | 0.63% |
| 2022 to 2023 | Quarter 4: January to March | Lamps, reflectors and electrical equipment | 20.35% | 30.76% | 0.52% | 3.44% | 20.16% | 34.55% |
| 2022 to 2023 | Quarter 4: January to March | Noise, emissions and leaks | 5.05% | 4.42% | 0.09% | 0.57% | 5.01% | 4.95% |
| 2022 to 2023 | Quarter 4: January to March | Road Wheels | 0.22% | 0.20% | 0.04% | 0.26% | 0.19% | 0.20% |
| 2022 to 2023 | Quarter 4: January to March | Seat belts and supplementary restraint systems | 2.12% | 2.09% | 0.11% | 0.79% | 2.03% | 2.27% |
| 2022 to 2023 | Quarter 4: January to March | Speedometer and speed limiter | 0.01% | 0.01% | Not set | Not set | 0.01% | 0.01% |
| 2022 to 2023 | Quarter 4: January to March | Steering | 3.37% | 3.18% | 0.21% | 1.50% | 3.20% | 3.42% |
| 2022 to 2023 | Quarter 4: January to March | Suspension | 10.24% | 14.63% | 1.09% | 8.54% | 9.65% | 15.47% |
| 2022 to 2023 | Quarter 4: January to March | Tyres | 5.54% | 5.88% | 4.20% | 35.79% | 1.58% | 1.73% |
| 2022 to 2023 | Quarter 4: January to March | Visibility | 7.35% | 7.18% | 0.06% | 0.37% | 7.31% | 8.12% |
| 2022 to 2023 | Quarter 4: January to March | Overall initial failure rate | 36.96% | Not set | 10.78% | Not set | 26.18% | Not set |
| 2022 to 2023 | Quarter 4: January to March | Average defects per initial test failure | Not set | 3.42 | Not set | 0.42 | Not set | 3.01 |
| 2022 to 2023 | Quarter 3: October to December | Body, chassis, structure | 6.07% | 7.90% | 0.53% | 4.36% | 5.77% | 8.38% |
| 2022 to 2023 | Quarter 3: October to December | Brakes | 14.99% | 22.88% | 5.32% | 44.26% | 12.44% | 19.97% |
| 2022 to 2023 | Quarter 3: October to December | Identification of the vehicle | 0.64% | 0.60% | Not set | Not set | 0.64% | 0.68% |
| 2022 to 2023 | Quarter 3: October to December | Lamps, reflectors and electrical equipment | 19.95% | 30.34% | 0.45% | 3.16% | 19.79% | 34.03% |
| 2022 to 2023 | Quarter 3: October to December | Noise, emissions and leaks | 4.92% | 4.41% | 0.09% | 0.64% | 4.87% | 4.92% |
| 2022 to 2023 | Quarter 3: October to December | Road Wheels | 0.21% | 0.19% | 0.04% | 0.29% | 0.18% | 0.18% |
| 2022 to 2023 | Quarter 3: October to December | Seat belts and supplementary restraint systems | 2.04% | 2.08% | 0.09% | 0.64% | 1.97% | 2.27% |
| 2022 to 2023 | Quarter 3: October to December | Speedometer and speed limiter | 0.01% | 0.01% | Not set | Not set | 0.01% | 0.01% |
| 2022 to 2023 | Quarter 3: October to December | Steering | 3.48% | 3.37% | 0.21% | 1.53% | 3.31% | 3.61% |
| 2022 to 2023 | Quarter 3: October to December | Suspension | 10.43% | 15.21% | 1.08% | 8.74% | 9.87% | 16.09% |
| 2022 to 2023 | Quarter 3: October to December | Tyres | 5.55% | 5.98% | 4.11% | 36.01% | 1.68% | 1.89% |
| 2022 to 2023 | Quarter 3: October to December | Visibility | 7.08% | 7.05% | 0.05% | 0.36% | 7.04% | 7.95% |
| 2022 to 2023 | Quarter 3: October to December | Overall initial failure rate | 36.81% | Not set | 10.46% | Not set | 26.35% | Not set |
| 2022 to 2023 | Quarter 3: October to December | Average defects per initial test failure | Not set | 3.37 | Not set | 0.4 | Not set | 2.97 |
| 2022 to 2023 | Quarter 2: July to September | Body, chassis, structure | 5.90% | 7.82% | 0.53% | 4.48% | 5.59% | 8.28% |
| 2022 to 2023 | Quarter 2: July to September | Brakes | 14.70% | 22.51% | 5.40% | 44.91% | 12.13% | 19.43% |
| 2022 to 2023 | Quarter 2: July to September | Identification of the vehicle | 0.59% | 0.56% | Not set | Not set | 0.59% | 0.63% |
| 2022 to 2023 | Quarter 2: July to September | Lamps, reflectors and electrical equipment | 20.00% | 30.81% | 0.44% | 3.05% | 19.85% | 34.62% |
| 2022 to 2023 | Quarter 2: July to September | Noise, emissions and leaks | 4.71% | 4.24% | 0.09% | 0.64% | 4.66% | 4.74% |
| 2022 to 2023 | Quarter 2: July to September | Road Wheels | 0.22% | 0.21% | 0.03% | 0.26% | 0.19% | 0.20% |
| 2022 to 2023 | Quarter 2: July to September | Seat belts and supplementary restraint systems | 1.98% | 2.02% | 0.12% | 0.88% | 1.87% | 2.18% |
| 2022 to 2023 | Quarter 2: July to September | Speedometer and speed limiter | 0.02% | 0.01% | Not set | Not set | 0.02% | 0.02% |
| 2022 to 2023 | Quarter 2: July to September | Steering | 3.24% | 3.15% | 0.19% | 1.36% | 3.09% | 3.40% |
| 2022 to 2023 | Quarter 2: July to September | Suspension | 10.20% | 14.94% | 1.05% | 8.59% | 9.62% | 15.81% |
| 2022 to 2023 | Quarter 2: July to September | Tyres | 5.60% | 6.09% | 4.04% | 35.42% | 1.82% | 2.06% |
| 2022 to 2023 | Quarter 2: July to September | Visibility | 7.48% | 7.64% | 0.06% | 0.40% | 7.44% | 8.63% |
| 2022 to 2023 | Quarter 2: July to September | Overall initial failure rate | 36.48% | Not set | 10.45% | Not set | 26.03% | Not set |
| 2022 to 2023 | Quarter 2: July to September | Average defects per initial test failure | Not set | 3.38 | Not set | 0.41 | Not set | 2.97 |
| 2022 to 2023 | Quarter 1: April to June | Body, chassis, structure | 6.03% | 7.67% | 0.55% | 4.63% | 5.72% | 8.07% |
| 2022 to 2023 | Quarter 1: April to June | Brakes | 15.06% | 22.43% | 5.49% | 44.43% | 12.55% | 19.48% |
| 2022 to 2023 | Quarter 1: April to June | Identification of the vehicle | 0.66% | 0.59% | Not set | Not set | 0.66% | 0.66% |
| 2022 to 2023 | Quarter 1: April to June | Lamps, reflectors and electrical equipment | 20.64% | 31.00% | 0.48% | 3.24% | 20.49% | 34.73% |
| 2022 to 2023 | Quarter 1: April to June | Noise, emissions and leaks | 4.55% | 3.89% | 0.10% | 0.66% | 4.49% | 4.32% |
| 2022 to 2023 | Quarter 1: April to June | Road Wheels | 0.23% | 0.21% | 0.04% | 0.29% | 0.20% | 0.20% |
| 2022 to 2023 | Quarter 1: April to June | Seat belts and supplementary restraint systems | 2.22% | 2.17% | 0.13% | 0.89% | 2.11% | 2.34% |
| 2022 to 2023 | Quarter 1: April to June | Speedometer and speed limiter | 0.01% | 0.01% | Not set | Not set | 0.01% | 0.01% |
| 2022 to 2023 | Quarter 1: April to June | Steering | 3.42% | 3.20% | 0.23% | 1.62% | 3.26% | 3.41% |
| 2022 to 2023 | Quarter 1: April to June | Suspension | 10.20% | 14.50% | 1.10% | 8.71% | 9.62% | 15.28% |
| 2022 to 2023 | Quarter 1: April to June | Tyres | 5.79% | 6.05% | 4.10% | 35.09% | 1.98% | 2.15% |
| 2022 to 2023 | Quarter 1: April to June | Visibility | 8.32% | 8.29% | 0.07% | 0.44% | 8.28% | 9.35% |
| 2022 to 2023 | Quarter 1: April to June | Overall initial failure rate | 36.62% | Not set | 10.61% | Not set | 26.00% | Not set |
| 2022 to 2023 | Quarter 1: April to June | Average defects per initial test failure | Not set | 3.55 | Not set | 0.42 | Not set | 3.13 |
| 2021 to 2022 | Total | Body, chassis, structure | 6.45% | 7.72% | 0.62% | 4.63% | 6.10% | 8.15% |
| 2021 to 2022 | Total | Brakes | 16.06% | 22.98% | 5.84% | 43.52% | 13.45% | 20.12% |
| 2021 to 2022 | Total | Identification of the vehicle | 0.68% | 0.56% | Not set | Not set | 0.68% | 0.64% |
| 2021 to 2022 | Total | Lamps, reflectors and electrical equipment | 21.62% | 30.59% | 0.54% | 3.29% | 21.44% | 34.39% |
| 2021 to 2022 | Total | Noise, emissions and leaks | 4.75% | 3.83% | 0.11% | 0.69% | 4.69% | 4.26% |
| 2021 to 2022 | Total | Road Wheels | 0.23% | 0.19% | 0.04% | 0.25% | 0.19% | 0.18% |
| 2021 to 2022 | Total | Seat belts and supplementary restraint systems | 2.25% | 2.09% | 0.12% | 0.75% | 2.15% | 2.28% |
| 2021 to 2022 | Total | Speedometer and speed limiter | 0.02% | 0.01% | Not set | Not set | 0.02% | 0.01% |
| 2021 to 2022 | Total | Steering | 3.87% | 3.40% | 0.26% | 1.67% | 3.67% | 3.65% |
| 2021 to 2022 | Total | Suspension | 11.41% | 15.43% | 1.29% | 9.51% | 10.72% | 16.25% |
| 2021 to 2022 | Total | Tyres | 5.96% | 5.92% | 4.44% | 35.20% | 1.80% | 1.84% |
| 2021 to 2022 | Total | Visibility | 7.87% | 7.28% | 0.08% | 0.48% | 7.82% | 8.23% |
| 2021 to 2022 | Total | Overall initial failure rate | 38.01% | Not set | 11.43% | Not set | 26.58% | Not set |
| 2021 to 2022 | Total | Average defects per initial test failure | Not set | 3.62 | Not set | 0.44 | Not set | 3.18 |
| 2021 to 2022 | Quarter 4: January to March | Body, chassis, structure | 6.60% | 7.80% | 0.60% | 4.60% | 6.20% | 8.30% |
| 2021 to 2022 | Quarter 4: January to March | Brakes | 16.10% | 23.10% | 5.90% | 43.50% | 13.40% | 20.20% |
| 2021 to 2022 | Quarter 4: January to March | Identification of the vehicle | 0.70% | 0.60% | 0.00% | 0.00% | 0.70% | 0.60% |
| 2021 to 2022 | Quarter 4: January to March | Lamps, reflectors and electrical equipment | 21.60% | 30.60% | 0.60% | 3.50% | 21.40% | 34.40% |
| 2021 to 2022 | Quarter 4: January to March | Noise, emissions and leaks | 4.90% | 3.90% | 0.10% | 0.70% | 4.80% | 4.40% |
| 2021 to 2022 | Quarter 4: January to March | Road Wheels | 0.20% | 0.20% | 0.00% | 0.30% | 0.20% | 0.20% |
| 2021 to 2022 | Quarter 4: January to March | Seat belts and supplementary restraint systems | 2.30% | 2.10% | 0.10% | 0.80% | 2.20% | 2.30% |
| 2021 to 2022 | Quarter 4: January to March | Speedometer and speed limiter | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
| 2021 to 2022 | Quarter 4: January to March | Steering | 3.90% | 3.40% | 0.30% | 1.70% | 3.60% | 3.60% |
| 2021 to 2022 | Quarter 4: January to March | Suspension | 11.30% | 15.20% | 1.30% | 9.50% | 10.60% | 16.00% |
| 2021 to 2022 | Quarter 4: January to March | Tyres | 5.90% | 5.90% | 4.50% | 35.00% | 1.70% | 1.80% |
| 2021 to 2022 | Quarter 4: January to March | Visibility | 7.90% | 7.20% | 0.10% | 0.40% | 7.80% | 8.20% |
| 2021 to 2022 | Quarter 4: January to March | Overall initial failure rate | 38.00% | Not set | 11.50% | Not set | 26.50% | Not set |
| 2021 to 2022 | Quarter 4: January to March | Average defects per initial test failure | Not set | 3.62 | Not set | 0.45 | Not set | 3.17 |
| 2021 to 2022 | Quarter 3: October to December | Body, chassis, structure | 6.59% | 7.84% | 0.62% | 4.69% | 6.24% | 8.28% |
| 2021 to 2022 | Quarter 3: October to December | Brakes | 16.21% | 22.86% | 5.76% | 42.36% | 13.60% | 20.12% |
| 2021 to 2022 | Quarter 3: October to December | Identification of the vehicle | 0.69% | 0.57% | 0.00% | 0.00% | 0.69% | 0.65% |
| 2021 to 2022 | Quarter 3: October to December | Lamps, reflectors and electrical equipment | 21.46% | 30.06% | 0.53% | 3.20% | 21.28% | 33.83% |
| 2021 to 2022 | Quarter 3: October to December | Noise, emissions and leaks | 4.91% | 3.96% | 0.12% | 0.72% | 4.84% | 4.41% |
| 2021 to 2022 | Quarter 3: October to December | Road Wheels | 0.22% | 0.19% | 0.04% | 0.24% | 0.19% | 0.18% |
| 2021 to 2022 | Quarter 3: October to December | Seat belts and supplementary restraint systems | 2.28% | 2.13% | 0.12% | 0.73% | 2.19% | 2.33% |
| 2021 to 2022 | Quarter 3: October to December | Speedometer and speed limiter | 0.02% | 0.01% | 0.00% | 0.00% | 0.02% | 0.01% |
| 2021 to 2022 | Quarter 3: October to December | Steering | 4.13% | 3.64% | 0.27% | 1.73% | 3.92% | 3.91% |
| 2021 to 2022 | Quarter 3: October to December | Suspension | 11.79% | 15.97% | 1.36% | 9.93% | 11.08% | 16.81% |
| 2021 to 2022 | Quarter 3: October to December | Tyres | 6.02% | 5.99% | 4.56% | 35.90% | 1.74% | 1.79% |
| 2021 to 2022 | Quarter 3: October to December | Visibility | 7.43% | 6.78% | 0.08% | 0.49% | 7.38% | 7.67% |
| 2021 to 2022 | Quarter 3: October to December | Overall initial failure rate | 38.30% | Not set | 11.50% | Not set | 26.70% | Not set |
| 2021 to 2022 | Quarter 3: October to December | Average defects per initial test failure | Not set | 3.6 | Not set | 0.44 | Not set | 3.15 |
| 2021 to 2022 | Quarter 2: July to September | Body, chassis, structure | 6.07% | 7.50% | 0.58% | 4.46% | 5.74% | 7.92% |
| 2021 to 2022 | Quarter 2: July to September | Brakes | 15.91% | 23.34% | 5.84% | 44.88% | 13.30% | 20.37% |
| 2021 to 2022 | Quarter 2: July to September | Identification of the vehicle | 0.62% | 0.54% | 0.00% | 0.00% | 0.62% | 0.61% |
| 2021 to 2022 | Quarter 2: July to September | Lamps, reflectors and electrical equipment | 21.12% | 30.69% | 0.47% | 3.01% | 20.96% | 34.51% |
| 2021 to 2022 | Quarter 2: July to September | Noise, emissions and leaks | 4.57% | 3.79% | 0.12% | 0.75% | 4.50% | 4.21% |
| 2021 to 2022 | Quarter 2: July to September | Road Wheels | 0.19% | 0.16% | 0.03% | 0.23% | 0.16% | 0.16% |
| 2021 to 2022 | Quarter 2: July to September | Seat belts and supplementary restraint systems | 2.08% | 2.00% | 0.11% | 0.73% | 1.99% | 2.18% |
| 2021 to 2022 | Quarter 2: July to September | Speedometer and speed limiter | 0.01% | 0.01% | 0.00% | 0.00% | 0.01% | 0.01% |
| 2021 to 2022 | Quarter 2: July to September | Steering | 3.67% | 3.32% | 0.24% | 1.63% | 3.49% | 3.56% |
| 2021 to 2022 | Quarter 2: July to September | Suspension | 11.16% | 15.44% | 1.21% | 9.20% | 10.51% | 16.30% |
| 2021 to 2022 | Quarter 2: July to September | Tyres | 5.79% | 5.90% | 4.24% | 34.61% | 1.82% | 1.93% |
| 2021 to 2022 | Quarter 2: July to September | Visibility | 7.63% | 7.31% | 0.08% | 0.50% | 7.58% | 8.26% |
| 2021 to 2022 | Quarter 2: July to September | Overall Initial Failure Rate | 37.50% | Not set | 11.10% | Not set | 26.40% | Not set |
| 2021 to 2022 | Quarter 2: July to September | Average defects per Initial Test Failure | Not set | 3.56 | Not set | 0.43 | Not set | 3.12 |
| 2021 to 2022 | Quarter 1: April to June | Body, chassis, structure | 6.40% | 7.60% | 0.63% | 4.76% | 6.04% | 7.98% |
| 2021 to 2022 | Quarter 1: April to June | Brakes | 15.97% | 22.81% | 5.77% | 43.81% | 13.49% | 19.99% |
| 2021 to 2022 | Quarter 1: April to June | Identification of the vehicle | 0.76% | 0.61% | 0.00% | 0.00% | 0.76% | 0.69% |
| 2021 to 2022 | Quarter 1: April to June | Lamps, reflectors and electrical equipment | 22.11% | 31.25% | 0.57% | 3.53% | 21.91% | 34.97% |
| 2021 to 2022 | Quarter 1: April to June | Noise, emissions and leaks | 4.48% | 3.50% | 0.10% | 0.62% | 4.42% | 3.89% |
| 2021 to 2022 | Quarter 1: April to June | Road Wheels | 0.26% | 0.21% | 0.04% | 0.29% | 0.22% | 0.20% |
| 2021 to 2022 | Quarter 1: April to June | Seat belts and supplementary restraint systems | 2.31% | 2.09% | 0.11% | 0.76% | 2.22% | 2.27% |
| 2021 to 2022 | Quarter 1: April to June | Speedometer and speed limiter | 0.01% | 0.01% | 0.00% | 0.00% | 0.01% | 0.01% |
| 2021 to 2022 | Quarter 1: April to June | Steering | 3.56% | 3.08% | 0.23% | 1.58% | 3.39% | 3.28% |
| 2021 to 2022 | Quarter 1: April to June | Suspension | 11.18% | 14.86% | 1.25% | 9.21% | 10.50% | 15.62% |
| 2021 to 2022 | Quarter 1: April to June | Tyres | 6.05% | 5.86% | 4.38% | 34.95% | 1.96% | 1.96% |
| 2021 to 2022 | Quarter 1: April to June | Visibility | 8.80% | 8.12% | 0.08% | 0.50% | 8.75% | 9.14% |
| 2021 to 2022 | Quarter 1: April to June | Overall Initial Failure Rate | 37.80% | Not set | 11.30% | Not set | 26.60% | Not set |
| 2021 to 2022 | Quarter 1: April to June | Average defects per Initial Test Failure | Not set | 3.73 | Not set | 0.44 | Not set | 3.29 |
| 2020 to 2021 | Total | Body, chassis, structure | 6.58% | 7.69% | 0.67% | 4.68% | 6.21% | 8.12% |
| 2020 to 2021 | Total | Brakes | 16.55% | 23.25% | 6.10% | 43.13% | 13.82% | 20.36% |
| 2020 to 2021 | Total | Identification of the vehicle | 0.71% | 0.56% | Not set | Not set | 0.71% | 0.64% |
| 2020 to 2021 | Total | Lamps, reflectors and electrical equipment | 22.38% | 30.84% | 0.61% | 3.50% | 22.18% | 34.80% |
| 2020 to 2021 | Total | Noise, emissions and leaks | 4.55% | 3.53% | 0.11% | 0.63% | 4.48% | 3.95% |
| 2020 to 2021 | Total | Road Wheels | 0.22% | 0.17% | 0.04% | 0.25% | 0.18% | 0.16% |
| 2020 to 2021 | Total | Seat belts and supplementary restraint systems | 2.30% | 2.10% | 0.11% | 0.65% | 2.22% | 2.31% |
| 2020 to 2021 | Total | Speedometer and speed limiter | 0.02% | 0.01% | Not set | Not set | 0.02% | 0.01% |
| 2020 to 2021 | Total | Steering | 4.06% | 3.44% | 0.29% | 1.75% | 3.84% | 3.69% |
| 2020 to 2021 | Total | Suspension | 11.71% | 15.40% | 1.44% | 9.84% | 10.93% | 16.21% |
| 2020 to 2021 | Total | Tyres | 6.11% | 5.83% | 4.73% | 35.04% | 1.64% | 1.60% |
| 2020 to 2021 | Total | Visibility | 7.97% | 7.18% | 0.10% | 0.53% | 7.91% | 8.14% |
| 2020 to 2021 | Total | Overall Initial Failure Rate | 38.66% | Not set | 12.08% | Not set | 26.58% | Not set |
| 2020 to 2021 | Total | Average defects per Initial Test Failure | Not set | 3.68 | Not set | 0.47 | Not set | 3.21 |
| 2020 to 2021 | Quarter 4: January to March | Body, chassis, structure | 6.68% | 7.86% | 0.66% | 4.66% | 6.33% | 8.32% |
| 2020 to 2021 | Quarter 4: January to March | Brakes | 16.59% | 23.16% | 6.04% | 42.32% | 13.93% | 20.40% |
| 2020 to 2021 | Quarter 4: January to March | Identification of the vehicle | 0.76% | 0.59% | 0.00% | 0.00% | 0.76% | 0.68% |
| 2020 to 2021 | Quarter 4: January to March | Lamps, reflectors and electrical equipment | 22.64% | 30.91% | 0.67% | 3.80% | 22.41% | 34.81% |
| 2020 to 2021 | Quarter 4: January to March | Noise, emissions and leaks | 4.64% | 3.54% | 0.11% | 0.64% | 4.58% | 3.96% |
| 2020 to 2021 | Quarter 4: January to March | Road Wheels | 0.24% | 0.19% | 0.04% | 0.25% | 0.20% | 0.18% |
| 2020 to 2021 | Quarter 4: January to March | Seat belts and supplementary restraint systems | 2.45% | 2.18% | 0.11% | 0.64% | 2.36% | 2.40% |
| 2020 to 2021 | Quarter 4: January to March | Speedometer and speed limiter | 0.02% | 0.02% | 0.00% | 0.00% | 0.02% | 0.02% |
| 2020 to 2021 | Quarter 4: January to March | Steering | 4.08% | 3.41% | 0.30% | 1.79% | 3.86% | 3.64% |
| 2020 to 2021 | Quarter 4: January to March | Suspension | 11.66% | 15.16% | 1.45% | 9.91% | 10.88% | 15.92% |
| 2020 to 2021 | Quarter 4: January to March | Tyres | 6.16% | 5.83% | 4.80% | 35.47% | 1.61% | 1.56% |
| 2020 to 2021 | Quarter 4: January to March | Visibility | 8.10% | 7.16% | 0.09% | 0.51% | 8.05% | 8.11% |
| 2020 to 2021 | Quarter 4: January to March | Overall initial failure rate | 38.80% | Not set | 12.10% | Not set | 26.70% | Not set |
| 2020 to 2021 | Quarter 4: January to March | Average defects per initial test failure | Not set | 3.72 | Not set | 0.47 | Not set | 3.25 |
| 2020 to 2021 | Quarter 3: October to December | Body, chassis, structure | 6.95% | 7.95% | 0.70% | 4.77% | 6.56% | 8.41% |
| 2020 to 2021 | Quarter 3: October to December | Brakes | 16.98% | 23.10% | 6.26% | 42.85% | 14.18% | 20.24% |
| 2020 to 2021 | Quarter 3: October to December | Identification of the vehicle | 0.73% | 0.56% | 0.00% | 0.00% | 0.73% | 0.65% |
| 2020 to 2021 | Quarter 3: October to December | Lamps, reflectors and electrical equipment | 22.73% | 30.49% | 0.59% | 3.33% | 22.52% | 34.43% |
| 2020 to 2021 | Quarter 3: October to December | Noise, emissions and leaks | 4.73% | 3.60% | 0.11% | 0.61% | 4.66% | 4.04% |
| 2020 to 2021 | Quarter 3: October to December | Road Wheels | 0.22% | 0.17% | 0.03% | 0.21% | 0.19% | 0.17% |
| 2020 to 2021 | Quarter 3: October to December | Seat belts and supplementary restraint systems | 2.38% | 2.12% | 0.12% | 0.69% | 2.29% | 2.33% |
| 2020 to 2021 | Quarter 3: October to December | Speedometer and speed limiter | 0.02% | 0.01% | 0.00% | 0.00% | 0.02% | 0.01% |
| 2020 to 2021 | Quarter 3: October to December | Steering | 4.38% | 3.63% | 0.30% | 1.83% | 4.15% | 3.89% |
| 2020 to 2021 | Quarter 3: October to December | Suspension | 12.24% | 15.90% | 1.53% | 10.18% | 11.42% | 16.73% |
| 2020 to 2021 | Quarter 3: October to December | Tyres | 6.23% | 5.77% | 4.86% | 34.99% | 1.63% | 1.54% |
| 2020 to 2021 | Quarter 3: October to December | Visibility | 7.69% | 6.69% | 0.10% | 0.53% | 7.62% | 7.58% |
| 2020 to 2021 | Quarter 3: October to December | Overall initial failure rate | 39.30% | Not set | 12.40% | Not set | 26.90% | Not set |
| 2020 to 2021 | Quarter 3: October to December | Average defects per initial test failure | Not set | 3.71 | Not set | 0.47 | Not set | 3.24 |
| 2020 to 2021 | Quarter 2: July to September | Body, chassis, structure | 6.37% | 7.41% | 0.65% | 4.65% | 5.99% | 7.81% |
| 2020 to 2021 | Quarter 2: July to September | Brakes | 16.68% | 23.81% | 6.13% | 44.27% | 13.89% | 20.84% |
| 2020 to 2021 | Quarter 2: July to September | Identification of the vehicle | 0.67% | 0.54% | 0.00% | 0.00% | 0.67% | 0.62% |
| 2020 to 2021 | Quarter 2: July to September | Lamps, reflectors and electrical equipment | 21.83% | 30.49% | 0.57% | 3.36% | 21.64% | 34.43% |
| 2020 to 2021 | Quarter 2: July to September | Noise, emissions and leaks | 4.50% | 3.55% | 0.10% | 0.59% | 4.43% | 3.98% |
| 2020 to 2021 | Quarter 2: July to September | Road Wheels | 0.18% | 0.15% | 0.04% | 0.26% | 0.15% | 0.14% |
| 2020 to 2021 | Quarter 2: July to September | Seat belts and supplementary restraint systems | 2.16% | 2.02% | 0.09% | 0.58% | 2.08% | 2.22% |
| 2020 to 2021 | Quarter 2: July to September | Speedometer and speed limiter | 0.01% | 0.01% | 0.00% | 0.00% | 0.01% | 0.01% |
| 2020 to 2021 | Quarter 2: July to September | Steering | 3.89% | 3.37% | 0.27% | 1.64% | 3.68% | 3.62% |
| 2020 to 2021 | Quarter 2: July to September | Suspension | 11.57% | 15.33% | 1.35% | 9.42% | 10.84% | 16.18% |
| 2020 to 2021 | Quarter 2: July to September | Tyres | 6.03% | 5.89% | 4.59% | 34.68% | 1.69% | 1.71% |
| 2020 to 2021 | Quarter 2: July to September | Visibility | 8.05% | 7.44% | 0.10% | 0.56% | 7.99% | 8.43% |
| 2020 to 2021 | Quarter 2: July to September | Overall Initial Failure Rate | 38.50% | Not set | 12.00% | Not set | 26.60% | Not set |
| 2020 to 2021 | Quarter 2: July to September | Average defects per Initial Test Failure | Not set | 3.61 | Not set | 0.46 | Not set | 3.15 |
| 2020 to 2021 | Quarter 1: April to June | Body, chassis, structure | 5.65% | 6.95% | 0.59% | 4.43% | 5.33% | 7.31% |
| 2020 to 2021 | Quarter 1: April to June | Brakes | 15.08% | 23.19% | 5.66% | 43.61% | 12.58% | 20.22% |
| 2020 to 2021 | Quarter 1: April to June | Identification of the vehicle | 0.58% | 0.49% | 0.00% | 0.00% | 0.58% | 0.56% |
| 2020 to 2021 | Quarter 1: April to June | Lamps, reflectors and electrical equipment | 21.59% | 32.26% | 0.55% | 3.44% | 21.40% | 36.45% |
| 2020 to 2021 | Quarter 1: April to June | Noise, emissions and leaks | 3.90% | 3.26% | 0.12% | 0.74% | 3.82% | 3.63% |
| 2020 to 2021 | Quarter 1: April to June | Road Wheels | 0.20% | 0.17% | 0.05% | 0.34% | 0.16% | 0.15% |
| 2020 to 2021 | Quarter 1: April to June | Seat belts and supplementary restraint systems | 2.00% | 1.97% | 0.10% | 0.68% | 1.92% | 2.15% |
| 2020 to 2021 | Quarter 1: April to June | Speedometer and speed limiter | 0.01% | 0.01% | 0.00% | 0.00% | 0.01% | 0.01% |
| 2020 to 2021 | Quarter 1: April to June | Steering | 3.34% | 3.06% | 0.24% | 1.57% | 3.18% | 3.28% |
| 2020 to 2021 | Quarter 1: April to June | Suspension | 10.54% | 14.64% | 1.31% | 9.59% | 9.80% | 15.37% |
| 2020 to 2021 | Quarter 1: April to June | Tyres | 5.72% | 5.89% | 4.42% | 35.03% | 1.56% | 1.66% |
| 2020 to 2021 | Quarter 1: April to June | Visibility | 8.08% | 8.11% | 0.09% | 0.56% | 8.03% | 9.21% |
| 2020 to 2021 | Quarter 1: April to June | Overall Initial Failure Rate | 36.40% | Not set | 4.30% | Not set | 10.40% | Not set |
| 2020 to 2021 | Quarter 1: April to June | Average defects per Initial Test Failure | Not set | 3.61 | Not set | 0.46 | Not set | 3.15 |
| 2019 to 2020 | Total | Body, chassis, structure | 7.14% | 7.81% | 0.80% | 5.41% | 6.69% | 8.15% |
| 2019 to 2020 | Total | Brakes | 17.29% | 22.81% | 6.23% | 42.04% | 14.53% | 20.07% |
| 2019 to 2020 | Total | Identification of the vehicle | 0.79% | 0.58% | Not set | Not set | 0.79% | 0.66% |
| 2019 to 2020 | Total | Lamps, reflectors and electrical equipment | 24.23% | 31.65% | 0.73% | 4.06% | 23.99% | 35.59% |
| 2019 to 2020 | Total | Noise, emissions and leaks | 4.77% | 3.51% | 0.16% | 0.84% | 4.68% | 3.89% |
| 2019 to 2020 | Total | Road Wheels | 0.22% | 0.17% | 0.04% | 0.26% | 0.18% | 0.16% |
| 2019 to 2020 | Total | Seat belts and supplementary restraint systems | 2.57% | 2.24% | 0.12% | 0.69% | 2.48% | 2.46% |
| 2019 to 2020 | Total | Speedometer and speed limiter | 0.02% | 0.02% | Not set | Not set | 0.02% | 0.02% |
| 2019 to 2020 | Total | Steering | 4.27% | 3.41% | 0.31% | 1.78% | 4.04% | 3.64% |
| 2019 to 2020 | Total | Suspension | 12.49% | 15.46% | 1.56% | 10.24% | 11.61% | 16.20% |
| 2019 to 2020 | Total | Tyres | 6.16% | 5.48% | 4.87% | 34.11% | 1.54% | 1.38% |
| 2019 to 2020 | Total | Visibility | 8.08% | 6.88% | 0.11% | 0.57% | 8.01% | 7.79% |
| 2019 to 2020 | Total | Overall Initial Failure Rate | 40.42% | Not set | 12.64% | Not set | 27.78% | Not set |
| 2019 to 2020 | Total | Average defects per Initial Test Failure | Not set | 3.74 | Not set | 0.47 | Not set | 3.27 |
| 2019 to 2020 | Quarter 4: January to March | Body, chassis, structure | 6.60% | 7.50% | 0.70% | 4.70% | 6.20% | 7.90% |
| 2019 to 2020 | Quarter 4: January to March | Brakes | 16.00% | 23.30% | 6.10% | 42.50% | 13.90% | 20.40% |
| 2019 to 2020 | Quarter 4: January to March | Identification of the vehicle | 0.70% | 0.60% | 0.00% | 0.00% | 0.80% | 0.70% |
| 2019 to 2020 | Quarter 4: January to March | Lamps, reflectors and electrical equipment | 22.70% | 31.70% | 0.70% | 3.90% | 23.00% | 35.80% |
| 2019 to 2020 | Quarter 4: January to March | Noise, emissions and leaks | 4.50% | 3.50% | 0.10% | 0.80% | 4.40% | 3.90% |
| 2019 to 2020 | Quarter 4: January to March | Road Wheels | 0.20% | 0.20% | 0.00% | 0.30% | 0.20% | 0.20% |
| 2019 to 2020 | Quarter 4: January to March | Seat belts and supplementary restraint systems | 2.40% | 2.10% | 0.10% | 0.70% | 2.20% | 2.30% |
| 2019 to 2020 | Quarter 4: January to March | Speedometer and speed limiter | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
| 2019 to 2020 | Quarter 4: January to March | Steering | 4.10% | 3.30% | 0.30% | 1.60% | 3.70% | 3.50% |
| 2019 to 2020 | Quarter 4: January to March | Suspension | 11.50% | 15.20% | 1.50% | 9.70% | 10.80% | 16.00% |
| 2019 to 2020 | Quarter 4: January to March | Tyres | 5.80% | 5.80% | 4.90% | 35.40% | 1.50% | 1.40% |
| 2019 to 2020 | Quarter 4: January to March | Visibility | 7.10% | 6.90% | 0.10% | 0.50% | 7.70% | 7.90% |
| 2019 to 2020 | Quarter 4: January to March | Overall initial failure rate | 39.20% | Not set | 12.30% | Not set | 26.90% | Not set |
| 2019 to 2020 | Quarter 4: January to March | Average defects per initial test failure | Not set | 3.63 | Not set | 0.47 | Not set | 3.16 |
| 2019 to 2020 | Quarter 3: October to December | Body, chassis, structure | 7.00% | 7.80% | 0.70% | 4.90% | 6.60% | 8.20% |
| 2019 to 2020 | Quarter 3: October to December | Brakes | 17.10% | 22.70% | 6.10% | 41.70% | 14.30% | 20.00% |
| 2019 to 2020 | Quarter 3: October to December | Identification of the vehicle | 0.80% | 0.60% | 0.00% | 0.00% | 0.80% | 0.70% |
| 2019 to 2020 | Quarter 3: October to December | Lamps, reflectors and electrical equipment | 24.10% | 32.00% | 0.70% | 4.00% | 23.90% | 36.10% |
| 2019 to 2020 | Quarter 3: October to December | Noise, emissions and leaks | 4.70% | 3.50% | 0.10% | 0.80% | 4.70% | 3.90% |
| 2019 to 2020 | Quarter 3: October to December | Road Wheels | 0.20% | 0.20% | 0.00% | 0.30% | 0.20% | 0.20% |
| 2019 to 2020 | Quarter 3: October to December | Seat belts and supplementary restraint systems | 2.50% | 2.20% | 0.10% | 0.60% | 2.50% | 2.50% |
| 2019 to 2020 | Quarter 3: October to December | Speedometer and speed limiter | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
| 2019 to 2020 | Quarter 3: October to December | Steering | 4.30% | 3.50% | 0.30% | 1.70% | 4.10% | 3.70% |
| 2019 to 2020 | Quarter 3: October to December | Suspension | 12.30% | 15.40% | 1.50% | 10.10% | 11.40% | 16.20% |
| 2019 to 2020 | Quarter 3: October to December | Tyres | 6.20% | 5.60% | 5.00% | 35.50% | 1.50% | 1.30% |
| 2019 to 2020 | Quarter 3: October to December | Visibility | 7.50% | 6.40% | 0.10% | 0.50% | 7.40% | 7.20% |
| 2019 to 2020 | Quarter 3: October to December | Overall initial failure rate | 40.20% | Not set | 12.50% | Not set | 27.70% | Not set |
| 2019 to 2020 | Quarter 3: October to December | Average defects per initial test failure | Not set | 3.69 | Not set | 0.46 | Not set | 3.23 |
| 2019 to 2020 | Quarter 2: July to September | Body, chassis, structure | 7.30% | 7.90% | 0.80% | 5.70% | 6.80% | 8.20% |
| 2019 to 2020 | Quarter 2: July to September | Brakes | 17.60% | 22.90% | 6.30% | 42.80% | 14.80% | 20.10% |
| 2019 to 2020 | Quarter 2: July to September | Identification of the vehicle | 0.80% | 0.60% | 0.00% | 0.00% | 0.80% | 0.70% |
| 2019 to 2020 | Quarter 2: July to September | Lamps, reflectors and electrical equipment | 24.30% | 31.50% | 0.70% | 4.10% | 24.10% | 35.30% |
| 2019 to 2020 | Quarter 2: July to September | Noise, emissions and leaks | 4.90% | 3.50% | 0.20% | 0.90% | 4.80% | 3.90% |
| 2019 to 2020 | Quarter 2: July to September | Road Wheels | 0.20% | 0.20% | 0.00% | 0.20% | 0.20% | 0.20% |
| 2019 to 2020 | Quarter 2: July to September | Seat belts and supplementary restraint systems | 2.60% | 2.20% | 0.10% | 0.70% | 2.50% | 2.50% |
| 2019 to 2020 | Quarter 2: July to September | Steering | 4.30% | 3.40% | 0.30% | 1.80% | 4.10% | 3.60% |
| 2019 to 2020 | Quarter 2: July to September | Suspension | 12.90% | 15.70% | 1.60% | 10.60% | 12.00% | 16.40% |
| 2019 to 2020 | Quarter 2: July to September | Tyres | 6.00% | 5.20% | 4.70% | 32.70% | 1.60% | 1.40% |
| 2019 to 2020 | Quarter 2: July to September | Visibility | 8.20% | 6.90% | 0.10% | 0.50% | 8.10% | 7.70% |
| 2019 to 2020 | Quarter 2: July to September | Overall Initial Failure Rate | 40.60% | Not set | 12.60% | Not set | 28.10% | Not set |
| 2019 to 2020 | Quarter 2: July to September | Average defects per Initial Test Failure | Not set | 3.77 | Not set | 0.46 | Not set | 3.31 |
| 2019 to 2020 | Quarter 1: April to June | Body, chassis, structure | 7.47% | 7.97% | 0.94% | 6.15% | 6.93% | 8.23% |
| 2019 to 2020 | Quarter 1: April to June | Brakes | 17.74% | 22.80% | 6.36% | 41.91% | 14.99% | 20.10% |
| 2019 to 2020 | Quarter 1: April to June | Identification of the vehicle | 0.79% | 0.57% | 0.00% | 0.00% | 0.79% | 0.65% |
| 2019 to 2020 | Quarter 1: April to June | Lamps, reflectors and electrical equipment | 24.76% | 31.23% | 0.77% | 4.20% | 24.49% | 35.06% |
| 2019 to 2020 | Quarter 1: April to June | Noise, emissions and leaks | 4.91% | 3.49% | 0.17% | 0.90% | 4.80% | 3.86% |
| 2019 to 2020 | Quarter 1: April to June | Road Wheels | 0.21% | 0.16% | 0.04% | 0.23% | 0.18% | 0.14% |
| 2019 to 2020 | Quarter 1: April to June | Seat belts and supplementary restraint systems | 2.74% | 2.32% | 0.13% | 0.74% | 2.64% | 2.55% |
| 2019 to 2020 | Quarter 1: April to June | Speedometer and speed limiter | 0.02% | 0.01% | 0.00% | 0.00% | 0.02% | 0.02% |
| 2019 to 2020 | Quarter 1: April to June | Steering | 4.37% | 3.36% | 0.33% | 1.87% | 4.11% | 3.58% |
| 2019 to 2020 | Quarter 1: April to June | Suspension | 12.92% | 15.49% | 1.64% | 10.52% | 11.99% | 16.19% |
| 2019 to 2020 | Quarter 1: April to June | Tyres | 6.15% | 5.27% | 4.83% | 32.79% | 1.58% | 1.37% |
| 2019 to 2020 | Quarter 1: April to June | Visibility | 8.74% | 7.33% | 0.14% | 0.70% | 8.65% | 8.26% |
| 2019 to 2020 | Quarter 1: April to June | Overall Initial Failure Rate | 41.10% | Not set | 12.95% | Not set | 28.15% | Not set |
| 2019 to 2020 | Quarter 1: April to June | Average defects per Initial Test Failure | Not set | 3.8 | Not set | 0.5 | Not set | 3.4 |
| 2018 to 2019 | 20 May 2018 to 31 March 2019 | Lamps, reflectors and electrical equipment | 22.20% | 31.10% | 0.80% | 4.90% | 21.90% | 34.80% |
| 2018 to 2019 | 20 May 2018 to 31 March 2019 | Brakes | 16.30% | 23.50% | 5.90% | 43.00% | 13.90% | 20.80% |
| 2018 to 2019 | 20 May 2018 to 31 March 2019 | Suspension | 11.60% | 15.40% | 1.50% | 10.60% | 10.80% | 16.00% |
| 2018 to 2019 | 20 May 2018 to 31 March 2019 | Visibility | 7.90% | 7.30% | 0.10% | 0.80% | 7.80% | 8.20% |
| 2018 to 2019 | 20 May 2018 to 31 March 2019 | Body, chassis, structure | 6.80% | 7.90% | 1.00% | 7.40% | 6.20% | 8.00% |
| 2018 to 2019 | 20 May 2018 to 31 March 2019 | Tyres | 5.20% | 4.90% | 3.90% | 29.00% | 1.60% | 1.50% |
| 2018 to 2019 | 20 May 2018 to 31 March 2019 | Noise, emissions and leaks | 4.40% | 3.50% | 0.20% | 1.30% | 4.30% | 3.80% |
| 2018 to 2019 | 20 May 2018 to 31 March 2019 | Steering | 4.00% | 3.40% | 0.30% | 2.00% | 3.70% | 3.60% |
| 2018 to 2019 | 20 May 2018 to 31 March 2019 | Seat belts and supplementary restraint systems | 2.50% | 2.30% | 0.10% | 0.70% | 2.40% | 2.50% |
| 2018 to 2019 | 20 May 2018 to 31 March 2019 | Identification of the vehicle | 0.80% | 0.60% | 0.00% | 0.00% | 0.80% | 0.70% |
| 2018 to 2019 | 20 May 2018 to 31 March 2019 | Road Wheels | 0.20% | 0.20% | 0.00% | 0.20% | 0.20% | 0.10% |
| 2018 to 2019 | 20 May 2018 to 31 March 2019 | Speedometer and speed limiter | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
| 2018 to 2019 | 20 May 2018 to 31 March 2019 | Buses and coaches supplementary tests | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
| 2018 to 2019 | 20 May 2018 to 31 March 2019 | Seat belt installation check | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
| 2018 to 2019 | 20 May 2018 to 31 March 2019 | Overall Initial Failure Rate | 42.00% | - | 13.50% | - | 28.50% | - |
| 2018 to 2019 | 20 May 2018 to 31 March 2019 | Average defects per Initial Test Failure | - | 3.39 | - | 0.42 | - | 2.97 |
| 2018 to 2019 | 1 April 2018 to 19 May 2018 | Body and structure | 4.60% | 4.60% | Not set | Not set | Not set | Not set |
| 2018 to 2019 | 1 April 2018 to 19 May 2018 | Brakes | 20.20% | 24.60% | Not set | Not set | Not set | Not set |
| 2018 to 2019 | 1 April 2018 to 19 May 2018 | Driver's view of the road | 11.00% | 8.20% | Not set | Not set | Not set | Not set |
| 2018 to 2019 | 1 April 2018 to 19 May 2018 | Fuel and exhaust | 3.50% | 2.30% | Not set | Not set | Not set | Not set |
| 2018 to 2019 | 1 April 2018 to 19 May 2018 | Lighting and signalling | 28.70% | 32.40% | Not set | Not set | Not set | Not set |
| 2018 to 2019 | 1 April 2018 to 19 May 2018 | Reg plates and VIN | 1.10% | 0.70% | Not set | Not set | Not set | Not set |
| 2018 to 2019 | 1 April 2018 to 19 May 2018 | Road wheels | 0.20% | 0.20% | Not set | Not set | Not set | Not set |
| 2018 to 2019 | 1 April 2018 to 19 May 2018 | Seat belts | 3.20% | 2.40% | Not set | Not set | Not set | Not set |
| 2018 to 2019 | 1 April 2018 to 19 May 2018 | Steering | 5.10% | 3.40% | Not set | Not set | Not set | Not set |
| 2018 to 2019 | 1 April 2018 to 19 May 2018 | Suspension | 15.40% | 16.40% | Not set | Not set | Not set | Not set |
| 2018 to 2019 | 1 April 2018 to 19 May 2018 | Towbars | 0.20% | 0.10% | Not set | Not set | Not set | Not set |
| 2018 to 2019 | 1 April 2018 to 19 May 2018 | Tyres | 6.50% | 4.80% | Not set | Not set | Not set | Not set |
| 2018 to 2019 | 1 April 2018 to 19 May 2018 | Overall Initial Failure Rate | 43.80% | Not set | Not set | Not set | Not set | Not set |
| 2018 to 2019 | 1 April 2018 to 19 May 2018 | Average defects per Initial Test Failure | Not set | 4.13 | Not set | Not set | Not set | Not set |
| 2017 to 2018 | Not set | Body and structure | 6.20% | 9.10% | Not set | Not set | Not set | Not set |
| 2017 to 2018 | Not set | Brakes | 11.50% | 23.10% | Not set | Not set | Not set | Not set |
| 2017 to 2018 | Not set | Driver's view of the road | 5.30% | 7.00% | Not set | Not set | Not set | Not set |
| 2017 to 2018 | Not set | Fuel and exhaust | 0.70% | 0.70% | Not set | Not set | Not set | Not set |
| 2017 to 2018 | Not set | Lighting and signalling | 2.50% | 3.00% | Not set | Not set | Not set | Not set |
| 2017 to 2018 | Not set | Reg plates and VIN | 15.20% | 26.70% | Not set | Not set | Not set | Not set |
| 2017 to 2018 | Not set | Road wheels | 0.40% | 0.40% | Not set | Not set | Not set | Not set |
| 2017 to 2018 | Not set | Seat belts | 0.10% | 0.10% | Not set | Not set | Not set | Not set |
| 2017 to 2018 | Not set | Steering | 5.50% | 9.10% | Not set | Not set | Not set | Not set |
| 2017 to 2018 | Not set | Suspension | 2.40% | 2.90% | Not set | Not set | Not set | Not set |
| 2017 to 2018 | Not set | Towbars | 7.10% | 12.60% | Not set | Not set | Not set | Not set |
| 2017 to 2018 | Not set | Tyres | 0.10% | 0.20% | Not set | Not set | Not set | Not set |
| 2017 to 2018 | Not set | Overall Initial Failure Rate | 3.30% | 3.27 | Not set | Not set | Not set | Not set |
| 2017 to 2018 | Not set | Average defects per Initial Test Failure | 30.30% | Not set | Not set | Not set | Not set | Not set |
| 2016 to 2017 | Not set | Body and structure | 4.90% | 4.63% | Not set | Not set | Not set | Not set |
| 2016 to 2017 | Not set | Brakes | 22.90% | 23.50% | Not set | Not set | Not set | Not set |
| 2016 to 2017 | Not set | Driver's view of the road | 10.70% | 7.70% | Not set | Not set | Not set | Not set |
| 2016 to 2017 | Not set | Fuel and exhaust | 4.00% | 2.40% | Not set | Not set | Not set | Not set |
| 2016 to 2017 | Not set | Lighting and signalling | 31.30% | 32.90% | Not set | Not set | Not set | Not set |
| 2016 to 2017 | Not set | Reg plates and VIN | 1.20% | 0.70% | Not set | Not set | Not set | Not set |
| 2016 to 2017 | Not set | Road wheels | 0.20% | 0.10% | Not set | Not set | Not set | Not set |
| 2016 to 2017 | Not set | Seat belts | 3.50% | 2.50% | Not set | Not set | Not set | Not set |
| 2016 to 2017 | Not set | Steering | 5.90% | 3.80% | Not set | Not set | Not set | Not set |
| 2016 to 2017 | Not set | Suspension | 16.10% | 16.70% | Not set | Not set | Not set | Not set |
| 2016 to 2017 | Not set | Towbars | 0.20% | 0.10% | Not set | Not set | Not set | Not set |
| 2016 to 2017 | Not set | Tyres | 6.80% | 4.80% | Not set | Not set | Not set | Not set |
| 2016 to 2017 | Not set | Overall Initial Failure Rate | 45.40% | - | Not set | Not set | Not set | Not set |
| 2016 to 2017 | Not set | Average defects per Initial Test Failure | - | 4.19 | Not set | Not set | Not set | Not set |
| 2015 to 2016 | Not set | Body and structure | 4.90% | 4.40% | Not set | Not set | Not set | Not set |
| 2015 to 2016 | Not set | Brakes | 24.40% | 24.10% | Not set | Not set | Not set | Not set |
| 2015 to 2016 | Not set | Driver's view of the road | 11.10% | 7.80% | Not set | Not set | Not set | Not set |
| 2015 to 2016 | Not set | Fuel and exhaust | 4.40% | 2.50% | Not set | Not set | Not set | Not set |
| 2015 to 2016 | Not set | Lighting and signalling | 32.30% | 32.40% | Not set | Not set | Not set | Not set |
| 2015 to 2016 | Not set | Reg plates and VIN | 1.30% | 0.70% | Not set | Not set | Not set | Not set |
| 2015 to 2016 | Not set | Road wheels | 0.30% | 0.20% | Not set | Not set | Not set | Not set |
| 2015 to 2016 | Not set | Seat belts | 3.60% | 2.50% | Not set | Not set | Not set | Not set |
| 2015 to 2016 | Not set | Steering | 6.50% | 4.00% | Not set | Not set | Not set | Not set |
| 2015 to 2016 | Not set | Suspension | 16.60% | 16.50% | Not set | Not set | Not set | Not set |
| 2015 to 2016 | Not set | Towbars | 0.20% | 0.10% | Not set | Not set | Not set | Not set |
| 2015 to 2016 | Not set | Tyres | 7.00% | 4.70% | Not set | Not set | Not set | Not set |
| 2015 to 2016 | Not set | Overall Initial Failure Rate | 46.80% | - | Not set | Not set | Not set | Not set |
| 2015 to 2016 | Not set | Average defects per Initial Test Failure | - | 4.26 | Not set | Not set | Not set | Not set |
| 2014 to 2015 | Not set | Body and structure | 4.60% | 4.10% | Not set | Not set | Not set | Not set |
| 2014 to 2015 | Not set | Brakes | 20.90% | 24.80% | Not set | Not set | Not set | Not set |
| 2014 to 2015 | Not set | Driver's view of the road | 10.10% | 7.30% | Not set | Not set | Not set | Not set |
| 2014 to 2015 | Not set | Fuel and exhaust | 4.50% | 2.60% | Not set | Not set | Not set | Not set |
| 2014 to 2015 | Not set | Lighting and signalling | 30.00% | 32.20% | Not set | Not set | Not set | Not set |
| 2014 to 2015 | Not set | Reg plates and VIN | 1.30% | 0.70% | Not set | Not set | Not set | Not set |
| 2014 to 2015 | Not set | Road wheels | 0.30% | 0.20% | Not set | Not set | Not set | Not set |
| 2014 to 2015 | Not set | Seat belts | 3.50% | 2.50% | Not set | Not set | Not set | Not set |
| 2014 to 2015 | Not set | Steering | 6.70% | 4.40% | Not set | Not set | Not set | Not set |
| 2014 to 2015 | Not set | Suspension | 15.70% | 16.10% | Not set | Not set | Not set | Not set |
| 2014 to 2015 | Not set | Towbars | 0.20% | 0.10% | Not set | Not set | Not set | Not set |
| 2014 to 2015 | Not set | Tyres | 6.90% | 4.80% | Not set | Not set | Not set | Not set |
| 2014 to 2015 | Not set | Overall Initial Failure Rate | 49.00% | - | Not set | Not set | Not set | Not set |
| 2014 to 2015 | Not set | Average defects per Initial Test Failure | - | 4.37 | Not set | Not set | Not set | Not set |
| 2013 to 2014 | Not set | Body and structure | 4.80% | 4.00% | Not set | Not set | Not set | Not set |
| 2013 to 2014 | Not set | Brakes | 22.60% | 25.60% | Not set | Not set | Not set | Not set |
| 2013 to 2014 | Not set | Driver's view of the road | 10.90% | 7.50% | Not set | Not set | Not set | Not set |
| 2013 to 2014 | Not set | Fuel and exhaust | 4.80% | 2.70% | Not set | Not set | Not set | Not set |
| 2013 to 2014 | Not set | Lighting and signalling | 30.90% | 31.80% | Not set | Not set | Not set | Not set |
| 2013 to 2014 | Not set | Reg plates and VIN | 1.40% | 0.80% | Not set | Not set | Not set | Not set |
| 2013 to 2014 | Not set | Road wheels | 0.30% | 0.20% | Not set | Not set | Not set | Not set |
| 2013 to 2014 | Not set | Seat belts | 3.80% | 2.50% | Not set | Not set | Not set | Not set |
| 2013 to 2014 | Not set | Steering | 7.30% | 4.50% | Not set | Not set | Not set | Not set |
| 2013 to 2014 | Not set | Suspension | 15.80% | 15.20% | Not set | Not set | Not set | Not set |
| 2013 to 2014 | Not set | Towbars | 0.30% | 0.20% | Not set | Not set | Not set | Not set |
| 2013 to 2014 | Not set | Tyres | 7.20% | 4.80% | Not set | Not set | Not set | Not set |
| 2013 to 2014 | Not set | Overall Initial Failure Rate | 50.30% | - | Not set | Not set | Not set | Not set |
| 2013 to 2014 | Not set | Average defects per Initial Test Failure | - | 4.48 | Not set | Not set | Not set | Not set |