Hyundai Bayon MOT pass rates & common failures

Every completed first-attempt MOT on a Hyundai Bayon in Great Britain in 2025 — 5,491 tests. Figures cover every Bayon first-tested in 2025, all trims grouped. How the Bayon ages, what it fails on, and what mileage is normal, computed directly from the official DVSA record of every test.

Pass rate 2025
84.8%
12.5 points above the class-4 average (72.3%); unadjusted for age — the age-matched comparison is below
Tests analysed
5,491
first tests, 2025
Arrived with a dangerous fault
2.6%
of Bayon first tests; national 7.3%

How many Hyundai Bayon cars are still on the road?

At the end of 2025, DVLA's register held 22,500 Hyundai Bayon cars that were taxed or on SORN: 22,430 taxed and 70 on SORN (Statutory Off Road Notification — kept, but declared off the road by the keeper). The MOT figures above count tests; these count cars, across the whole United Kingdom, cars only. Hyundai Bayon vans, where they exist, are counted by DVLA as goods vehicles and are not in these figures.

Still taxed, end of 2025
22,430
99.7% of the 22,500 Bayon cars taxed or on SORN; 16 model variants grouped
On SORN, end of 2025
70
declared off the road by their keepers — 0.3% of that total

How the numbers are moving

The number of taxed Bayon cars is still rising: 22,430 at the end of 2025, up 3,649 (19.4%) on the end of 2024, and the highest in the years shown. Cars on SORN went from 3 at the end of 2021 to 70 at the end of 2025, up 2233.3%. A car leaves the taxed count when it is scrapped, exported or declared off the road; the year-end counts do not say which.

Taxed Bayon cars, year by year

Cars of this model taxed and on the road at the end of each year, 2014–2025.

05k10k15k20k25k2014201620182020202220242025Year (count at the end of the year)Taxed Bayon cars, year 2014: 0Taxed Bayon cars, year 2015: 0Taxed Bayon cars, year 2016: 0Taxed Bayon cars, year 2017: 0Taxed Bayon cars, year 2018: 0Taxed Bayon cars, year 2019: 0Taxed Bayon cars, year 2020: 0Taxed Bayon cars, year 2021: 1kTaxed Bayon cars, year 2022: 5kTaxed Bayon cars, year 2023: 13kTaxed Bayon cars, year 2024: 19kTaxed Bayon cars, year 2025: 22k22k
View this chart as a table
YearTaxed Bayon cars
20140
20150
20160
20170
20180
20190
20200
20211,352
20225,169
202312,757
202418,781
202522,430

Bayon cars on SORN, year by year

Cars of this model declared off the road at the end of each year, 2014–2025. Its own scale — SORN counts are a fraction of the taxed count.

0204060802014201620182020202220242025Year (count at the end of the year)Bayon cars on SORN, year 2014: 0Bayon cars on SORN, year 2015: 0Bayon cars on SORN, year 2016: 0Bayon cars on SORN, year 2017: 0Bayon cars on SORN, year 2018: 0Bayon cars on SORN, year 2019: 0Bayon cars on SORN, year 2020: 0Bayon cars on SORN, year 2021: 3Bayon cars on SORN, year 2022: 7Bayon cars on SORN, year 2023: 25Bayon cars on SORN, year 2024: 53Bayon cars on SORN, year 2025: 7070
View this chart as a table
YearBayon cars on SORN
20140
20150
20160
20170
20180
20190
20200
20213
20227
202325
202453
202570

Which model years survive

Taxed Bayon cars at the end of 2025 by year of manufacture, and each year's share of the 22,430 taxed in all. Every build year holding at least 1% has its own row; the rest share one. A build year's count depends on how many were sold that year as well as how many have lasted.

Year of manufacture Taxed, end of 2025Share of taxed Bayon cars
20254,11118.3%
20245,86126.1%
20237,64434.1%
20223,50515.6%
20211,3095.8%

Population source: Department for Transport / DVLA vehicle licensing statistics, table VEH0124, updated 15 July 2026; counts of the cars on DVLA's register that were taxed or on SORN at the end of each year shown, United Kingdom, cars only, excluding cars recorded with no model name. SortedCars groups DVLA's model names BAYON, BAYON PREMIUM, BAYON ULTIMATE, BAYON ADVANCE, BAYON TECH, BAYON BLACK under this model. Contains public sector information licensed under the Open Government Licence v3.0. SortedCars is not affiliated with, or endorsed by, DVLA or the Department for Transport.

How the Bayon ages

First-time pass rate by vehicle age, Bayon vs all cars, 2025.

Hyundai BayonAll cars
50%60%70%80%90%100%3579111315171920Vehicle age (years)Hyundai Bayon, vehicle age 3: 82.7%Hyundai Bayon, vehicle age 4: 89.9%All cars, vehicle age 3: 88.5%All cars, vehicle age 4: 87.2%All cars, vehicle age 5: 86%All cars, vehicle age 6: 83.5%All cars, vehicle age 7: 80.9%All cars, vehicle age 8: 78.2%All cars, vehicle age 9: 74.9%All cars, vehicle age 10: 71.9%All cars, vehicle age 11: 68.6%All cars, vehicle age 12: 65.8%All cars, vehicle age 13: 63.5%All cars, vehicle age 14: 61.2%All cars, vehicle age 15: 59.3%All cars, vehicle age 16: 58.3%All cars, vehicle age 17: 57.2%All cars, vehicle age 18: 57.4%All cars, vehicle age 19: 57%All cars, vehicle age 20: 57.6%Hyundai Bayon 89.9%All cars 57.6%
View this chart as a table
Age (years)Bayon testsBayon pass rateAll cars
33,83282.7%88.5%
41,30189.9%87.2%

Better or worse than the average car?

The Bayon's pass rate minus the all-cars pass rate at each age, in percentage points. Bars above zero: the Bayon beats the average car of that age. Below zero: it trails.

Bayon aheadBayon behind
-6-3+0+3+6Age 3: -5.8 points vs the average car3Age 4: +2.7 points vs the average carVehicle age (years)
View this chart as a table
Age (years)Gap (points)
3-5.8
4+2.7

The Bayon fleet on the road, by age

How many took a first MOT in 2025 at each age — the shape of the Bayon fleet still in use.

01k2k3k4kAge 3: 3k3Age 4: 1k4Vehicle age (years)
View this chart as a table
Age (years)First tests
33,832
41,301

What a Bayon fails on

Where the failure items land when a Bayon fails or needs a fix at test, 2025. Use it as a pre-purchase checklist: these are the areas to look at first.

Visibility50.3%
Lamps, reflectors and electrical equipment15.0%
Tyres14.5%
Brakes10.5%
Suspension2.8%
Seat belts and supplementary restraint systems2.1%
Noise, emissions and leaks1.6%
Body, chassis, structure1.3%

Share of all failure items, 2025 — the 8 biggest categories shown (98.3% of the items); smaller categories are not listed.

The advisories to watch

Where testers most often write "keep an eye on this" for a Bayon, 2025 — the faults in the post.

Tyres: 57.6% of advisories57.6%Brakes: 21.4% of advisories21.4%Non-component advisories: 16.7% of advisories16.7%Suspension: 1.8% of advisoriesIdentification of the vehicle: 1.1% of advisoriesRoad Wheels: 0.7% of advisories
TyresBrakesNon-component advisoriesSuspensionIdentification of the vehicleRoad Wheels
View this chart as a table
CategoryShare of advisories
Tyres57.6%
Brakes21.4%
Non-component advisories16.7%
Suspension1.8%
Identification of the vehicle1.1%
Road Wheels0.7%

What mileage is normal for a Bayon?

Mileage recorded at test by vehicle age, 2025. The line is the typical (median) Bayon; the shaded band holds the middle half. A car far outside the band, in either direction, is worth questions the recorded history can answer.

Typical Bayon (median)
0k25k50k34Vehicle age (years)Age 3: typical 21,250 miles (middle half 13,750–28,750)Age 4: typical 26,250 miles (middle half 18,750–36,250)26k mi

Mileage values are midpoints of 2,500-mile bands.

View this chart as a table
Age (years)Lower quarterTypical (median)Upper quarter
313,75021,25028,750
418,75026,25036,250

More vehicles we've checked

How these figures are computed. Every number on this page is calculated by SortedCars from the DVSA anonymised MOT results dataset (every MOT test in Great Britain — 2025 for single-year figures; trend figures state their span, currently 2023–2025). Where a figure comes from a sample or uses banded values (mileage is banded to 2,500 miles), the page says so beside the figure. Test class 4 only, first tests only — retests are excluded. Class 4 is the car MOT class and also covers car-derived vans, pickups and motorhomes tested to the same standard; where this page says "cars" it means class 4. Pass rate = passes ÷ (passes + failures + pass-after-rectification): a vehicle that failed and was fixed during the visit counts as a fail. Pass rates describe fleets, not individual machines: they reflect how cars were driven, maintained and used as well as how they were built, and beyond recorded mileage none of that is in the data. A well-kept example of a model with a weak average can still pass; a neglected example of a strong one can still fail. No figure is shown for any group with fewer than 500 tests. Alias spellings of a make in the DVSA file are counted under one make name, and all trims and variants of a model are grouped under one model name, using SortedCars' grouping tables. The taxed and SORN counts on this page are the one exception: they are not computed from MOT records but taken from the Department for Transport's vehicle licensing statistics (DfT/DVLA table VEH0124, updated 15 July 2026, Open Government Licence v3.0), which count the cars on DVLA's register that were taxed or on SORN at the end of each year shown, UK-wide, cars only. They describe a model as a whole, grouped under SortedCars' model names, and say nothing about any one car. “Dangerous” is DVSA's statutory defect category (in force since May 2018): a defect posing an immediate risk to road safety — driving the vehicle before repair is an offence. What these figures are for. These statistics are general information about groups of vehicles. They are not advice, a valuation or a recommendation to buy, avoid or price any particular vehicle, and no decision about one car should rest on them alone — check the car itself and its own records. We take care over the calculations, but we cannot guarantee they are complete, current or free of error, and we accept no liability for loss arising from reliance on them. This does not limit any liability that cannot lawfully be limited — see our Terms & Conditions. If you believe any figure on this page is inaccurate, contact us. SortedCars is not affiliated with, or endorsed by, the DVSA or DVLA. DVSA publishes the raw test records; the statistics on this page are SortedCars' own calculations from them. Contains public sector information licensed under the Open Government Licence v3.0.