MOT fail rates by first-use year
2017 Kia Rio MOT fail rate and common faults
How Kia Rio cars first used in 2017 did at their MOTs from 2022 to 2025, against all cars of the same age. From 32,483 DVSA MOT tests of these cars. First use is usually the date the car was first registered.
MOT data updated
At 8 years, tested in 2025
What stands out
- In 2025, at 8 years old, Kia Rio cars first used in 2017 failed 18.6% of MOTs (8,045 tests), 5.1 points below the 23.8% for all cars that age.
- From 2022 to 2025, as these cars went from 5 to 8 years old, the fail rate moved from 15.5% to 18.6%.
- Kia Rio cars first used a year earlier, in 2016, failed 22.4% at the same age of 8 years (8,844 tests, in 2024).
- The most common fail item that is not a wear item, for the Kia Rio at 8 years, is tyre pressure monitoring system: malfunctioning or obviously inoperative, at 1.4 per 100 MOTs (all cars: 0.8).
MOT fail rate by test year
| Test year | Age | MOT fail rate | Tests (n) | All cars | Difference |
|---|---|---|---|---|---|
| 2022 | 5 years | 15.5% | 8,166 | 15.3% | +0.2 pts |
| 2023 | 6 years | 16.1% | 8,161 | 17.8% | −1.7 pts |
| 2024 | 7 years | 17.6% | 8,111 | 20.6% | −3.1 pts |
| 2025 | 8 years | 18.6% | 8,045 | 23.8% | −5.1 pts |
Most common faults at 8 years
These figures cover all Kia Rio MOTs at 8 years: cars first used 2014 to 2017, tested 2022 to 2025 (n=39,618). The list uses every first-use year so it has enough tests. Wear items (tyres, brake pads, wipers, bulbs) say more about upkeep than about the design.
MOT fail items
| Fail item | Per 100 MOTs | All cars |
|---|---|---|
| Tyre tread below 1.6 mm Wear | 3.1 | 2.3 |
| Wipers not clearing screen Wear | 2.4 | 1.7 |
| Brake pads under 1.5 mm Wear | 2.4 | 2.0 |
| Dipped headlight not working Wear | 1.7 | 1.2 |
| Washers: provides insufficient washer liquid Wear | 1.4 | 1.1 |
| Tyre pressure monitoring system: malfunctioning or obviously inoperative | 1.4 | 0.8 |
| Side/position light not working Wear | 1.4 | 1.2 |
| Suspension arm ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt | 1.2 | 0.3 |
| Tyre condition: has a cut in excess of the requirements deep enough to reach the ply or cords Wear | 1.1 | 1.3 |
| Brake discs: significantly and obviously worn | 1.0 | 0.6 |
Per 100 of the MOTs above (n=39,618). A test with two items counts once for each.
Advisories
| Advisory | Per 100 MOTs | All cars |
|---|---|---|
| Tyre tread close to the legal limit or worn on the edge Wear | 16.9 | 15.7 |
| Brake discs: worn, pitted or scored, but not seriously weakened | 10.6 | 8.6 |
| Tyre condition: slightly damaged/cracking or perishing Wear | 9.7 | 8.6 |
| Brake pads wearing thin Wear | 9.5 | 8.6 |
| Brake discs: worn, but not excessively | 3.8 | 2.7 |
| Suspension pin or bush worn, without excessive movement | 3.5 | 4.0 |
| Non-component advisories: Child Seat fitted not allowing full inspection of adult belt | 2.5 | 2.3 |
| Tyre tread close to the legal limit, under the 1.0 mm rule Wear | 2.1 | 2.1 |
| Rigid brake pipes: corroded, covered in grease or other material | 2.0 | 1.4 |
| Track rod end: ball joint dust cover damaged or deteriorated, but preventing the ingress of dirt | 1.9 | 0.7 |
Per 100 of the MOTs above (n=39,618). A test with two items counts once for each.
Fuel type at 8 years
These figures cover all Kia Rio MOTs at 8 years: cars first used 2014 to 2017, tested 2022 to 2025 (n=39,618). Each fuel is set against all cars of the same fuel and age. Fuels with fewer than 1,000 tests are not shown.
| Fuel | Share of tests | MOT fail rate | Tests (n) | All cars, same fuel | Median mileage |
|---|---|---|---|---|---|
| Petrol | 80.0% | 21.9% | 31,679 | 22.8% | 48,301 miles |
| Diesel | 20.0% | 29.0% | 7,939 | 25.1% | 66,517 miles |
Fail rate by mileage at 8 years
These figures cover all Kia Rio MOTs at 8 years: cars first used 2014 to 2017, tested 2022 to 2025 (n=39,618). At 8 years, Kia Rio cars at 90,000 to 120,000 miles failed more often (35.1%, n=2,525) than those at under 30,000 miles (13.5%, n=5,865). Bands with fewer than 1,000 tests are not shown.
| Mileage at test | MOT fail rate | Tests (n) | All cars |
|---|---|---|---|
| Under 30,000 miles | 13.5% | 5,865 | 13.4% |
| 30,000 to 60,000 miles | 21.0% | 19,395 | 21.0% |
| 60,000 to 90,000 miles | 29.3% | 11,127 | 26.6% |
| 90,000 to 120,000 miles | 35.1% | 2,525 | 30.2% |
Car tax rules for a 2017 car
- Cars first registered from 1 March 2001 to 31 March 2017 are taxed by CO2 emissions band, from band A (the lowest emissions) to band M. The band is set by the CO2 figure on the V5C logbook.
- Cars first registered from 1 April 2017 pay a first-year rate set by CO2 emissions, then the standard rate each year. A petrol, diesel or hybrid car with a list price over £40,000 also pays the expensive car supplement for five years, from the second tax payment.
- A car first used in 2017 can fall under either rule, so the registration date on the logbook decides.
These are the rules, not the amount for a specific car. Car tax check
ULEZ and clean air zones
- Petrol cars first registered from 2006 usually meet Euro 4, the petrol standard for the London ULEZ, so they usually do not pay the daily charge.
- Diesel cars first registered from September 2015 usually meet Euro 6, the diesel standard for the London ULEZ, so they usually do not pay the daily charge.
- The clean air zones in Birmingham and Bristol use the same Euro 4 petrol and Euro 6 diesel standards. The low emission zones in Scotland use them too, but enforce them with fines, not a daily charge.
The Euro standard of the car decides, not the year alone. ULEZ checker
Other years of the Kia Rio
Other Kia models first used in 2017
| Model | Age at test | MOT fail rate | Tests (n) | All cars |
|---|---|---|---|---|
| Kia Sportage (2017) | 8 years in 2025 | 21.0% | 36,551 | 23.8% |
| Kia Picanto (2017) | 8 years in 2025 | 19.7% | 13,292 | 23.8% |
| Kia Ceed (2017) | 8 years in 2025 | 22.6% | 8,571 | 23.8% |
| Kia Venga (2017) | 8 years in 2025 | 15.6% | 5,918 | 23.8% |
| Kia Niro (2017) | 8 years in 2025 | 16.0% | 4,542 | 23.8% |
| Kia Optima (2017) | 8 years in 2025 | 19.1% | 3,245 | 23.8% |
| Kia Sorento (2017) | 8 years in 2025 | 20.8% | 3,110 | 23.8% |
| Kia Carens (2017) | 8 years in 2025 | 28.0% | 1,869 | 23.8% |
More on the Kia Rio
Found one you might buy? Vet the specific car.
These figures describe 2017 Kia Rio cars as a group, not any one car. The VetTheCar Buying Report looks at the car you are buying: its MOT history, what similar cars did next, and what to ask the seller.
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 28 September 2026.
Not affiliated with or endorsed by DVSA. How we calculate these figures · Data sources
Car tax and clean air zone rules are summarised from GOV.UK and Transport for London guidance. They are general rules and are not drawn from the MOT data.