Kia Stonic: what fails at MOT
36,000 MOT tests on the Kia Stonic in 2024, counted. 11.5% failed at the first attempt.
The short answer
11.5% of Kia Stonic tests failed at the first attempt. Cars of the same ages averaged 13.2%, so the Stonic is about average for its age.
It fails most often on wipers, washers and windscreen (3.1% of tests), brakes (2.1% of tests) and tyres (1.8% of tests). It fails on wipers, washers and windscreen more often than most cars its age.
By year of registration
Older cars fail more, whatever the model. So each year is shown beside the figure for all cars first used that year.
| First used | Tests | Failed first time | All cars that year | Typical mileage |
|---|---|---|---|---|
| 2021 | 7,931 | 7.6% | 10.9% | 18,900 12,800 to 26,300 |
| 2020 | 6,625 | 9.7% | 11.5% | 22,500 15,400 to 31,300 |
| 2019 | 11,207 | 12.9% | 13.4% | 31,500 22,700 to 41,300 |
| 2018 | 9,043 | 14.0% | 15.6% | 39,700 30,000 to 51,800 |
| 2017 | 994 | 16.1% | 18.2% | 43,400 31,900 to 56,400 |
Green is at least three points better than other cars that year, red at least three points worse. Typical mileage is the middle reading at the test, with the range the middle half of cars fell in.
Where it fails
The share of Kia Stonic tests with at least one failure in each part of the MOT, beside what cars of the same ages average.
| Part of the test | Stonic | Cars its age | |
|---|---|---|---|
| Wipers, washers and windscreen | 3.1% | 1.9% | More than most |
| Brakes | 2.1% | 1.6% | |
| Tyres | 1.8% | 3.1% | Less than most |
| Lights and electrics | 1.3% | 2.2% | Less than most |
| Exhaust and emissions | 0.4% | 0.6% | |
| Suspension | 0.3% | 0.9% |
The parts that fail most
- Wipers2.4%
- Brake pads1.7%
- Tyre1.0%
- Tyre tread0.9%
- Washers0.7%
- Headlamp aim0.5%
- Headlamp0.4%
- Brake discs0.3%
- Engine warning light0.3%
- Footbrake0.3%
Share of tests with a failure on that part.
The most common failures
- Wipers: does not clear the windscreen effectively2.4%
- Brake pads: less than 1.5 mm thick1.6%
- Tyre tread: below requirements of 1.6mm0.8%
- Tyre: has a cut in excess of the requirements deep enough to reach the ply or cords0.5%
- Headlamp: not working on dipped beam0.4%
- Washers: not working0.3%
- Washers: provides insufficient washer liquid0.3%
- Engine warning light: inoperative or indicates a malfunction0.3%
- Headlamp aim: too low0.3%
- Tyre: has a bulge, caused by separation or partial failure of its structure0.2%
What testers warn about
Advisories are things that passed this time but are wearing. They are the best guide to next year's bills.
- Tyre tread: worn close to legal limit/worn on edge9.0%
- Brake pads: wearing thin7.3%
- Brake discs: worn, pitted or scored, but not seriously weakened3.8%
- Tyre: slightly damaged/cracking or perishing2.5%
- Brake discs: worn, but not excessively1.9%
- Child Seat fitted not allowing full inspection of adult belt1.7%
- Nail in tyre1.5%
- Footbrake: binding but not excessively1.0%
What these figures can't tell you
An MOT is a safety and emissions test. These figures show how often the model fails that test. They say nothing about engines, gearboxes or electronics that break between tests, and how a car has been looked after matters more than its badge. The car you are looking at has its own MOT record, and that is the one to read.
Ask before you travel
- “Do the wipers and washers work properly, and is the windscreen chipped or cracked?”
- “When were the brake pads and discs last changed?”
- “How much tread is left on each tyre, and how old are they?”
- “Do all the lights work, including the number plate lights and brake lights?”
Check a Kia Stonic's own MOT record
Type the registration from the advert. You'll see every test that car has had, what it failed on and what it was warned about, free.
Where this comes from
DVSA anonymised MOT tests and results, 2024, published by the Driver and Vehicle Standards Agency. Contains public sector information licensed under the Open Government Licence v3.0. The counting is Hindsight's own.
First-attempt MOT tests of cars first used 2004 to 2021. A test counts as failed if it failed or only passed after a repair during the test. Retests are left out. Built on 13 November 2026.