Pass rate
92.9%
Above average — 2.2 pts ahead of the 90.7% that cars this age and mileage manage.
Across 2,013 recorded tests.
Typical repair bill £21–£51
2020 Kia Stonic Maxx MOT pass rate
- 2020
- typical 24,092 mi
Most common fault
Brakes
39.8% of faults · 20.9% nationally
mostly worn pads and discs, corroded pipes and a handbrake that will not hold.
Part only £25–£40 for Brake pads under 1.5 mm. What fitting it takes →
Which year to buy
- Best 2020 92.9% pass · this year
- Avoid 2019 91.7% pass
Across the 2 years on record, a spread of 1.2 points. See every year →
- First-attempt pass
- 92.4%
- Typical mileage
- 24k mi
The 2020 Kia Stonic Maxx MOT pass rate is 92.9% of its MOT tests — 2.2 points ahead of what its age and mileage predict. Brakes is the biggest single reason it fails, at 39.8% of what testers record.
Check your postcode
MOT pass rates are national — type your postcode to see how Kia Stonic Maxx does in your corner of the country.
Expert verdict
Brakes: 1.9× the national share
Brakes make up 39.8% of everything recorded on the 2020 Kia Stonic Maxx, against 20.9% nationally — 18.9 points above. Have the discs and pads measured rather than glanced at, and ask whether the handbrake holds on a slope.
- Failures here tend to be cheap ones. 57% of the repairs this model fails on cost under £30 in parts. The pass rate matters less than what a bad afternoon at the test centre actually costs you.
Written from this page's own figures: fault shares against the national composition, the like-for-like pass rate, and the priced repair list. How these are worked out
Watching a Kia Stonic Maxx? Get an email when these numbers change .
How does the 2020 Kia Stonic Maxx compare?
Cars of this age and mileage average 90.7%, so this figure is 2.2 points ahead of what its age and mileage predict. On a first attempt, before any retests, the figure drops to 92.4%. The median 2020 Kia Stonic Maxx in this dataset had covered 24,092 mi.
Pass rates also shift with the test month: tests recorded October–March passed 92.5% of the time, April–September 93.3%.
The single most recorded failure item is "Wipers does not clear the windscreen effectively", noted on 2.68% of tests.
- 2,013 recorded tests behind this page.
- 92.9% overall pass rate, 92.4% on a first attempt.
- Across every year of the Kia Stonic Maxx, the average is 92.5% — best year 2020 (92.9%), worst 2019 (91.7%).
Figures count every completed test on this vehicle-year in the dataset, including retests. See methodology for the exact definition.
This page's data
- Tests analysed
- 2,013
- Typical mileage (median)
- 24,092 mi
- Make and model
- Kia Stonic Maxx
- Updated
- 2026-11-05
Source: DVSA anonymised MOT test data (2023–2025), OGL v3.0.
Top part to budget for
Wiper Blade
Usually a DIY or independent-garage job.
Does mileage affect the Stonic Maxx MOT pass rate?
Pass rate by odometer reading. Bar lengths start at 72% so small gaps stay visible.
Regional pass rates for the Stonic Maxx
| Region | Tests | Pass rate |
|---|---|---|
| South East | 376 | 92.6% |
| Scotland | 306 | 92.8% |
| North West | 265 | 93.6% |
| Yorkshire | 259 | 93.1% |
| East of England | 179 | 93.9% |
| West Midlands | 158 | 94.3% |
| East Midlands | 155 | 92.9% |
| South West | 117 | 93.2% |
| Wales | 91 | 87.9% |
| North East | 78 | 94.9% |
| London | 29 | 89.7% |
Regions come from the postcode area recorded at the test station. Areas on region borders are assigned to the region with the majority of their population.
What fails a 2020 Stonic Maxx
Everything a tester recorded on this vehicle, grouped into the inspection sections that produced it. The notch on each bar is the national share, so you can see at a glance whether this car is unusual or just ordinary.
A test can record several items, so these percentages do not add up to 100%. The exact strings, with prices, are in the full DVSA record at the bottom of this page.
Before your test
Three checks worth doing on a 2020 Stonic Maxx
These are not generic tips — they are the faults recorded most often on this exact model, rewritten as things you can check yourself. All three take about ten minutes and cost nothing.
-
Check the wipers and washers 2.7% of tests
“wipers does not clear the windscreen effectively”
Run the wipers with the screen wet: they should clear it in one sweep without smearing or juddering. Top the washer bottle up and check both jets hit the screen.
-
Check the brakes 2.0% of tests
“brake pads less than 1.5 mm thick”
Look through the spokes of each wheel at the pad — less than 3mm of friction material, or a lip on the disc edge, is the usual failure. Check the handbrake holds on a slope with a few clicks, not at the top of its travel.
-
Check the windscreen 1.0% of tests
“windscreen damaged”
Check the driver’s side of the screen within the swept area for chips and cracks; anything larger than 10mm in the driver’s central view is a fail. Most chips can be resin-repaired for far less than a new screen.
Shares are the proportion of tests on this vehicle that recorded the item, so they overlap: one test can record several.
What it costs to get a 2020 Stonic Maxx through its MOT
Across the 10 items that are recorded most often on this model, the average repair comes to £21–£51 — and 57% of those repairs are parts that cost under £30.
- Average repair across the 10 common items
- £21–£51
- Cheapest common item: malfunction indicator lamp inoperative or…
- £3–£12
- Dearest common item: windscreen damaged
- £80–£200
- Common items a careful owner can do at home
- 90%
- Repairs that still cost under £30
- 57%
Estimates from typical UK parts prices, weighted by how often each item appears in 2,013 MOT tests on this vehicle. They exclude diagnostics, retest fees and garage labour where the part is a DIY fit, and they are not figures from the DVSA dataset. Older and higher-mileage examples cost more than the average. How these estimates are built → · All MOT repair costs → · Cheapest cars to put through a test →
Every year of the Stonic Maxx, side by side
2 model years on record, from 2019 to 2020. Across them the pass rate runs from 91.7% to 92.9% — a spread of 1.2 points. The bar under each year is the item that failed it most often.
- 2019 91.7% wipers does not clear the…
- 2020 92.9%wipers does not clear the…
Colour is the pass rate on a fixed scale, so a block means the same thing on any model. Each year links to its own page with the full fault breakdown.
Compare the 2020 Kia Stonic Maxx with another year
The raw pass rate mostly measures age. The year comparison adds the like-for-like figure, the mileage bands and the repair bill.
Other 2020 cars with a similar record
- BMW 2 Series 92.9%
- Toyota C-Hr Orange 92.9%
- Audi S4 92.9%
- Volvo XC60 R-Design B5 92.9%
- Volkswagen Golf 93.0%
- Honda Civic 93.0%
Closest pass rates among 2020 cars with at least 2,000 tests, so a small sample cannot flatter itself into the list. See the full rankings: best and worst MOT pass rates.
The full DVSA record for the 2020 Kia Stonic Maxx 10 failure items · 6 advisories · 10 inspection categories · mileage brackets · all of it in the page, none of it above the fold
Every inspection category
Shares of the 1,246 individual items recorded on this vehicle, and the same share across all cars nationally. A single test can record several items, so a row is not a percentage of tests.
| Category | Items | This car | Nationally | Difference |
|---|---|---|---|---|
| Brakes | 498 | 39.80% | 20.89% | +18.91 |
| Tyres | 364 | 29.10% | 19.76% | +9.34 |
| Visibility | 164 | 13.10% | 4.97% | +8.13 |
| Non-component advisories | 116 | 9.30% | 4.18% | +5.12 |
| Suspension | 36 | 2.90% | 20.98% | −18.08 |
| Lamps, reflectors and electrical equipment | 30 | 2.40% | 12.21% | −9.81 |
| Noise, emissions and leaks | 12 | 1.00% | 5.52% | −4.52 |
| Steering | 12 | 1.00% | 2.57% | −1.57 |
| Identification of the vehicle | 9 | 0.70% | 1.76% | −1.06 |
| Body, chassis, structure | 5 | 0.40% | 5.57% | −5.17 |
The exact failure items, in the tester's words
| Recorded item | Severity | Tests | Est. cost |
|---|---|---|---|
| Wipers does not clear the windscreen effectively Visibility | Rectified | 2.7% | £8–22 |
| Brake pads less than 1.5 mm thick Brakes | Major | 2.0% | £18–45 |
| Wipers blade defective Visibility | Minor | 1.7% | £8–22 |
| Wipers does not clear the windscreen effectively Visibility | Major | 1.5% | £8–22 |
| Windscreen damaged but not adversely affecting driver's view Visibility | Minor | 0.99% | £80–200 |
| Has a cut in excess of the requirements deep enough to reach the ply or cords Tyres | Major | 0.65% | £45–95 |
| Malfunction indicator lamp inoperative or indicates a malfunction Noise, emissions and leaks | Major | 0.45% | £3–12 |
| Ball joint dust cover no longer prevents the ingress of dirt Suspension | Major | 0.40% | £18–45 |
| Tread depth below requirements of 1.6mm Tyres | Major | 0.35% | £45–95 |
| Has a bulge, caused by separation or partial failure of its structure Tyres | Major | 0.30% | £45–95 |
Severity is as recorded: Major and Dangerous fail the test outright; Minor and Advisory do not. Costs are estimates from typical UK parts prices — see how they are built.
What testers noted without failing the car
Advisories are the early warnings — the same parts a year or two before they fail. Reading them is how you tell a car that has been maintained from one that has been patched.
| Recorded item | Severity | Tests | Est. cost |
|---|---|---|---|
| Brake pads less than 1.5 mm thick Brakes | Advisory | 11.2% | £18–45 |
| Tread depth below requirements of 1.6mm Tyres | Advisory | 10.5% | £45–95 |
| Brake discs in such a condition that it is seriously weakened Brakes | Advisory | 5.6% | £45–110 |
| Brake discs significantly and obviously worn Brakes | Advisory | 3.2% | £45–110 |
| Has a tear, caused by separation or partial failure of its structure Tyres | Advisory | 2.7% | £45–95 |
| Non-component advisories Child Seat fitted not allowing full inspection of adult belt Non-component advisories | Advisory | 2.3% | £20–80 |
Pass rate by mileage
| Mileage | Tests | Pass rate | Median odometer |
|---|---|---|---|
| 0-30k | 1,291 | 95.1% | 18,023 mi |
| 30-60k | 668 | 89.1% | 39,943 mi |
| 60-90k | 48 | 89.6% | 70,249 mi |
| 90-120k | 5 | 80.0% | 102,582 mi |
| 120k+ | 1 | 100.0% | 136,525 mi |
Source: 2,013 recorded tests on this vehicle-year. Every row above is recomputed from the same DVSA extract as the rest of the page — see the methodology.
2020 Stonic Maxx MOT questions
What is the MOT pass rate for a 2020 Kia Stonic Maxx?
92.9% of the 2,013 2020 Kia Stonic Maxx tests in this dataset passed, against a national average of 90.7% for cars first used in 2020. First-attempt pass rate: 92.4%.
What are the most common MOT failures on a 2020 Kia Stonic Maxx?
The three most recorded items are wipers does not clear the windscreen effectively (2.68%), brake pads less than 1.5 mm thick (2.04%), wipers blade defective (1.69%). Percentages are the share of tests on this vehicle that recorded the item.
Does mileage affect the 2020 Kia Stonic Maxx MOT pass rate?
Yes. Cars under 30,000 miles passed 95.1% of the time, falling to 100.0% for those over 120,000 miles. The median 2020 Kia Stonic Maxx in this dataset had covered 24,092 mi.
Does the season affect the 2020 Kia Stonic Maxx MOT pass rate?
Tests recorded in the winter months (October–March) passed 92.5% of the time; summer months (April–September) passed 93.3%. Brakes, tyres and lights are tested harder in bad weather, but the difference is small on most models.