Kia Stonic common problems by mileage
What UK MOT testers flag on the Kia Stonic at each age and mileage, compared with all cars.
In 20,487 UK MOT tests of the Kia Stonic in 2023, the problem that most sets it apart from other cars is wipers (does not clear the windscreen effectively): recorded on 4.7% of tests of 2018–2020 cars at 20k–40k mi (32k–64k km), 2.1× the rate for all cars of that age and mileage. Other stand-out issues: brake pads (less than 1.5 mm thick) (2.5×); brake pads (wearing thin) (1.5×); brake discs (worn, but not excessively) (1.5×). The most common reasons a Kia Stonic fails its MOT are wipers (does not clear the windscreen effectively); brake pads (less than 1.5 mm thick); tyres (tread depth below requirements of 1.6mm).
Last updated: · Source: DVSA anonymised MOT data 2023
What stands out on the Kia Stonic
Parts that MOT testers flag clearly more often on the Kia Stonic than on all cars of the same age at the same mileage (at least 1.5× the rate and 3% of tests).
| Issue | Type | First used | Mileage | Share of tests | All cars this age | Ratio | Tests |
|---|---|---|---|---|---|---|---|
| Wipers: does not clear the windscreen effectively | MOT fail | 2018–2020 | 20k–40k mi (32k–64k km) | 4.7% | 2.2% | 2.1× | 9,712 |
| Brake pads: less than 1.5 mm thick | MOT fail | 2017–2019 | 60k–80k mi (97k–129k km) | 6.4% | 2.6% | 2.5× | 502 |
| Brake pads: wearing thin | Advisory | 2018–2020 | 20k–40k mi (32k–64k km) | 13% | 8.6% | 1.5× | 9,712 |
| Brake discs: worn, but not excessively | Advisory | 2017–2019 | 20k–40k mi (32k–64k km) | 3% | 2% | 1.5× | 8,481 |
| Brake discs: worn, pitted or scored, but not seriously weakened | Advisory | 2018–2020 | 60k–80k mi (97k–129k km) | 13% | 7.2% | 1.8× | 452 |
Kia Stonic by mileage (2018–2020 cars)
The most-tested first-use years. For each mileage band: how many MOT tests, the most common item, and the item that stands out most against other cars.
| Mileage | Tests | Most common | Stands out |
|---|---|---|---|
| 0k–20k mi (0k–32k km) | 6,519 | Tyres (tread depth): worn close to legal limit/worn on edge (2.9%) | — |
| 20k–40k mi (32k–64k km) | 9,712 | Tyres (tread depth): worn close to legal limit/worn on edge (14%) | Wipers: does not clear the windscreen effectively (4.7%, 2.1×) |
| 40k–60k mi (64k–97k km) | 2,827 | Tyres (tread depth): worn close to legal limit/worn on edge (18%) | Wipers: does not clear the windscreen effectively (4.3%, 1.8×) |
| 60k–80k mi (97k–129k km) | 452 | Tyres (tread depth): worn close to legal limit/worn on edge (18%) | Brake pads: less than 1.5 mm thick (6.2%, 2.4×) |
Kia Stonic by first-use year
| First used | Tests | Biggest stand-out issue |
|---|---|---|
| 2017 | 728 | Brake pads: less than 1.5 mm thick at 60k–80k mi (97k–129k km) (2.5×) |
| 2018 | 6,866 | Brake pads: less than 1.5 mm thick at 60k–80k mi (97k–129k km) (2.5×) |
| 2019 | 8,147 | Brake pads: less than 1.5 mm thick at 60k–80k mi (97k–129k km) (2.4×) |
| 2020 | 4,602 | Wipers: does not clear the windscreen effectively at 20k–40k mi (32k–64k km) (2.2×) |
| 2021 | 134 | Wipers: does not clear the windscreen effectively at 20k–40k mi (32k–64k km) (2.1×) |
How these numbers are made
From the DVSA anonymised MOT data for 2023: every normal MOT test of a car in Great Britain, with its mileage and every advisory and failure item. For each first-use year (pooled with the years either side) and 20,000-mile band we count the share of tests where a part was recorded, and compare it with the same share for every car of that age at that mileage. A cell is shown only with 300 or more tests. Advisories are tester notes, not failures. Figures describe UK-market cars; engines and equipment can differ in other countries.
Contains public sector information licensed under the Open Government Licence v3.0 (DVSA anonymised MOT data, 2023).
Frequently asked questions
What are the most common problems with the Kia Stonic?
In 20,487 UK MOT tests of the Kia Stonic in 2023, the problem that most sets it apart from other cars is wipers (does not clear the windscreen effectively): recorded on 4.7% of tests of 2018–2020 cars at 20k–40k mi (32k–64k km), 2.1× the rate for all cars of that age and mileage. Other stand-out issues: brake pads (less than 1.5 mm thick) (2.5×); brake pads (wearing thin) (1.5×); brake discs (worn, but not excessively) (1.5×). The most common reasons a Kia Stonic fails its MOT are wipers (does not clear the windscreen effectively); brake pads (less than 1.5 mm thick); tyres (tread depth below requirements of 1.6mm).
Why do Kia Stonics fail the MOT?
Across 20,487 MOT tests in 2023, the most common failure items on the Kia Stonic were wipers (does not clear the windscreen effectively) (4% of tests); brake pads (less than 1.5 mm thick) (2.9% of tests); tyres (tread depth below requirements of 1.6mm) (2.3% of tests).
At what mileage do Kia Stonic problems start?
The clearest Kia Stonic-specific issue, wipers (does not clear the windscreen effectively), peaks against other cars at 20k–40k mi (32k–64k km) on 2018–2020 cars (4.7% of tests vs 2.2% for all cars that age).
Where does this Kia Stonic data come from?
From the UK government's anonymised MOT test data (DVSA, 2023, Open Government Licence v3.0): 20,487 tests of the Kia Stonic. VinSnap shows the same numbers for your own car's age and mileage in the app.