Kia Stonic Reliability, MOT Pass Rate & Common Faults
Free Kia Stonic car check
Is the Kia Stonic reliable? We analysed 99,275 real MOT tests across 19,155 vehicles to find out.
Got a specific Kia Stonic? Enter the reg for a free check:
The Kia Stonic is above average for reliability based on real UK MOT data. Here's everything you need to know before buying a used Kia Stonic.
Kia Stonic Number Plates
Number plates registered to a Kia Stonic. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Kia Stonic MOT Pass Rate by Year
How likely is a Kia Stonic to pass its MOT? Here's the pass rate for each registration year, newest first.
Kia Stonic Common Faults & Problems
These are the most common serious faults found on Kia Stonic models during MOT testing — flagged as dangerous or major failures that need immediate attention.
Kia Stonic Mileage — What's Normal?
How many miles does a typical Kia Stonic owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Kia Stonic MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Kia Stonic year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2021 | 413 | 88.1% | 15,416 | 23,004 | 32,858 |
| 2020 | 13,501 | 90.7% | 15,446 | 23,577 | 34,211 |
| 2019 | 38,066 | 89.6% | 19,296 | 28,913 | 40,944 |
| 2018 | 41,134 | 89.0% | 22,406 | 33,394 | 47,686 |
| 2017 | 4,964 | 89.3% | 22,833 | 34,832 | 50,423 |
How Long Does a Kia Stonic Last?
Based on 19,155 Kia Stonic vehicles on UK roads.
Kia Stonic Mileage Distribution
Total mileage recorded across all Kia Stonic MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Kia Stonic
Based on MOT pass rates across all registration years with sufficient test data.
90.7% MOT pass rate from 13,501 tests
88.1% MOT pass rate from 413 tests
The best year to buy a used Kia Stonic is 2020, which has the highest MOT pass rate at 90.7% across 13,501 tests. The 2021 model year has the lowest pass rate at 88.1% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Kia Stonic Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Kia Stonic THIS CAR | 89.4% | 99,275 | 30,281 mi | — yrs |
| Kia Sportage | 80.4% | 2,634,551 | 53,679 mi | 26 yrs |
| Kia Picanto | 77.1% | 2,626,043 | 39,084 mi | 22 yrs |
| Kia Ceed | 76.1% | 1,665,385 | 60,630 mi | 19 yrs |
| Subaru Justy | 70.5% | 47,648 | 54,598 mi | 38 yrs |
Compared to the Kia Sportage (80.4% pass rate) and the Kia Picanto (77.1% pass rate), the Kia Stonic outperforms both on MOT reliability.
Found a Kia Stonic you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Kia StonicShould you buy a used Kia Stonic?
The Kia Stonic has an overall MOT pass rate of 89.4% across 99,275 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
On the safety side, the most frequently flagged dangerous fault is tyre tread depth below requirements of 1.6mm. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a Kia Stonic with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.
A typical Kia Stonic owner drives around 6,307 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.