MOT fail rates
Hyundai i40 MOT fail rate by age
How often the Hyundai i40 fails its MOT at each age, compared with all cars of the same age, and what it fails on. From 85,833 DVSA MOT tests taken 2022 to 2025.
MOT data updated
At 9 years, the most tested age
187 of 315 model groups with enough tests fail less often at 9 years.
What stands out
- At 4 years the Hyundai i40 fails 17.0% of MOTs (1,715 tests), 3.7 points above the 13.4% for all cars that age. At 13 years it fails 39.0% (3,382 tests), about the same as the 38.3% average.
- The gap is widest at 4 years: 3.7 points above all cars.
- Its most common structural or mechanical fail item at 9 years: Steering track rod end: ball joint play, at 4.6 per 100 MOTs.
MOT fail rate by age
Solid line: this model. Dashed line: all cars at the same age.
| Age | MOT fail rate | Tests (n) | All cars | Difference | Median mileage |
|---|---|---|---|---|---|
| 4 years | 17.0% | 1,715 | 13.4% | +3.7 pts | 47,597 miles |
| 5 years | 16.6% | 4,350 | 15.3% | +1.3 pts | 55,185 miles |
| 6 years | 18.1% | 8,005 | 17.8% | +0.3 pts | 65,418 miles |
| 7 years | 20.8% | 11,129 | 20.6% | +0.2 pts | 73,958 miles |
| 8 years | 24.6% | 13,563 | 23.8% | +0.8 pts | 81,675 miles |
| 9 years | 27.8% | 13,789 | 27.1% | +0.7 pts | 90,050 miles |
| 10 years | 31.9% | 13,520 | 30.3% | +1.6 pts | 97,166 miles |
| 11 years | 35.0% | 10,158 | 33.3% | +1.8 pts | 103,568 miles |
| 12 years | 36.0% | 6,222 | 36.0% | 0.0 pts | 109,541 miles |
| 13 years | 39.0% | 3,382 | 38.3% | +0.8 pts | 112,049 miles |
Most common fail items at 9 years
Split into structural or mechanical items and wear items. Wear items (tyres, brake pads, wipers, bulbs) say more about upkeep than about the design.
Structural and mechanical
| Fail item | Per 100 MOTs |
|---|---|
| Steering track rod end: ball joint play Major | 4.6 |
| Rigid brake pipes: excessively corroded Major | 2.3 |
| Service brake performance: excessively binding Major | 2 |
Out of 13,789 MOTs. A test with two faults counts twice.
Wear and upkeep
| Fail item | Per 100 MOTs |
|---|---|
| Brake pads under 1.5 mm Dangerous | 4.9 |
| Tyre tread below 1.6 mm Dangerous | 3.4 |
| Dipped headlight not working Major | 2.9 |
| Wipers not clearing screen Major | 2 |
| Tyre condition: has a cut in excess of the requirements deep enough to reach the ply or cords Major | 1.5 |
| Tyre with cords exposed Dangerous | 1.5 |
| Headlamp aim: too low Major | 1.3 |
Out of 13,789 MOTs. A test with two faults counts twice.
Other models at 9 years
| Model | MOT fail rate | Tests (n) | All cars |
|---|---|---|---|
| Hyundai i10 | 25.1% | 89,007 | 27.1% |
| Hyundai i20 | 25.6% | 52,995 | 27.1% |
| Hyundai i30 | 33.7% | 44,113 | 27.1% |
MOT fail rate by first-use year
Each year has its own page: the fail rate for cars first used that year at each MOT from 2022 to 2025 with at least 1,000 tests, the most common faults at that age, and the car tax and ULEZ rules for that year.
First-use year data updated .
| First used | Age at test | MOT fail rate | Tests (n) | All cars |
|---|---|---|---|---|
| 2012 | 13 years in 2025 | 38.9% | 2,812 | 38.3% |
| 2013 | 12 years in 2025 | 36.6% | 2,487 | 36.0% |
| 2014 | 11 years in 2025 | 32.9% | 3,379 | 33.3% |
| 2015 | 10 years in 2025 | 26.7% | 3,374 | 30.3% |
| 2016 | 9 years in 2025 | 21.8% | 3,366 | 27.1% |
| 2017 | 8 years in 2025 | 20.2% | 2,467 | 23.8% |
| 2018 | 7 years in 2025 | 19.2% | 1,135 | 20.6% |
More on the Hyundai i40
Looking at one Hyundai i40?
These are figures for the model, not for one car. The VetTheCar Buying Report looks at a single car: its MOT tests, defects, advisories and mileage readings.
Source
Contains public sector information licensed under the Open Government Licence v3.0. Source: DVSA anonymised MOT test data, class 4 normal MOT tests, 2022 to 2025. MOT data updated 22 September 2026.
Not affiliated with or endorsed by DVSA. How we calculate these figures · Data sources