Kia Stonic MOT pass rate: 89.1% (18,986 tests, 2025)

The Kia Stonic passed 89.1% of its 18,986 MOT tests in 2025 — 11.6 points above the UK average of 77.5%. The median tested example was 6 years old with 40,092 miles on the clock.

89.1%Pass rate (2025)

18,986MOT tests analysed

40,092 miMedian mileage at test

6 yrsMedian age at test

How the Stonic compares

Kia Stonic

89.1%

UK average (all Class 4 vehicles)

77.5% across 33.1 million tests

Kia average (all models)

79.8%

What fails most on the Kia Stonic

Across failed and rectified tests in 2025, these vehicle systems produced the most defects on the Stonic:

#	System	Defects recorded	Share
1	Brakes	1,143	34.1%
2	Tyres	686	20.4%
3	Visibility	498	14.8%
4	Lamps, reflectors and electrical equipment	410	12.2%
5	Suspension	351	10.5%
6	Noise, emissions and leaks	136	4.1%

Pre-MOT checklist for Stonic owners

Based on the failure profile above, ten minutes with a torch before your test removes the most likely fail items:

Feel for a spongy pedal or pulling to one side; check pad wear through the wheel spokes if visible
Check tread with the 20p test and inspect sidewalls for cracking — tyres close to the limit are the country’s most common advisory
Replace smeared wiper blades and top up washer fluid — both are test items
Walk round with all lights on: one blown bulb is the most avoidable fail there is
Bounce each corner and listen for clonks over speed bumps — suspension is this model’s (and the UK’s) top failure system

Check the engine before the tester does

A stored fault code with the engine light on is an automatic Major defect. Scan and clear resolved faults before booking.

Topdon OBD2 scannersTopdon diagnostic scanners with full-system readouts
XTOOL diagnostic toolsXTOOL code readers for petrol and diesel cars
Autel UK testersAutel professional-grade diagnostic testers

Stonic pass rate by registration year

Registration year	Tests	Pass rate	Vs same-age	Median mileage
2017	2,132	88.0%	+4.0 pts	44,946
2018	20,134	88.9%	+2.5 pts	39,752
2019	22,963	90.8%	+2.4 pts	31,139
2020	10,693	93.0%	+3.0 pts	22,277

Check a specific Stonic before you buy

Pass rates describe the model; they can’t tell you about the one car you’re looking at. Run its plate through our free MOT history check to see its personal record of failures, advisories and mileage readings.

Other Kia models

SPORTAGE78.9% pass rate · 253,493 tests Picanto76.2% pass rate · 180,724 tests Ceed72.5% pass rate · 111,091 tests Rio75.4% pass rate · 95,713 tests Niro90.5% pass rate · 54,779 tests Venga77.7% pass rate · 46,179 tests Sorento73.0% pass rate · 30,615 tests Soul73.2% pass rate · 21,811 tests

FAQs

What is the MOT pass rate for a Kia Stonic?

In 2025, 89.1% of 18,986 first MOT tests on the Kia Stonic were passes (UK average: 77.5%). Data: DVSA anonymised MOT results.

What does the Stonic fail its MOT on most?

The biggest defect group is brakes (34.1% of its recorded defects), followed by tyres.

Is the Kia Stonic reliable?

MOT pass rate is one lens on durability: at 89.1% it performs above the national average at a median age of 6 years and 40,092 miles. Always check the individual car's history too.

Source: DVSA Anonymised MOT tests and results, 2025 extract (Class 4 initial tests only; retests excluded). Contains public sector information licensed under the Open Government Licence v3.0. Figures rounded to one decimal place.