2021 Hyundai Kona Gdi Hev S-A — MOT failures & pass rate

Across 6,310 MOT tests analysed for the 2021 Hyundai Kona Gdi Hev S-A, the most common recorded failure areas were tyres, visibility and lighting & signalling. Its pass rate of 90.0% was below the average for cars of a similar age (91.2%). Higher-mileage examples failed more often — 17.2% in the 60-90k group versus 7.9% in the 0-30k group.

Pass rate

6,310

MOT tests analysed

10.0%

Fail rate

worse than

vs cars of similar age

3.5

Avg age at test (yrs)

How it compares

Fail rate for this model-year against the segment and national averages for cars of a similar age.

Top failure categories

Most common MOT failure areas — 2021 Hyundai Kona Gdi Hev S-A
#	Category	% of tests affected	Tests
1	Tyres	6.3%	395
2	Visibility	3.1%	193
3	Lighting & signalling	2.6%	164
4	Brakes	1.7%	107
5	Suspension	0.8%	50
6	Emissions & environmental	0.3%	19

Percentage of tests with at least one failure recorded in each category.

Most common specific failures

The exact components most often recorded as failures — more specific than the categories above.

Most frequently recorded failure items — 2021 Hyundai Kona Gdi Hev S-A
#	Failure item	Times recorded
1	Wipers	207
2	Headlamp aim	200
3	Pins and bushes	69
4	Electronic parking brake	66
5	Tread depth	63
6	Rbt (sp)	55

Top advisory categories

Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.

Most common MOT advisories — 2021 Hyundai Kona Gdi Hev S-A
#	Category	% of tests with advisory	Tests
1	Tyres	24.5%	1,544
2	Other defects	6.6%	416
3	Suspension	4.9%	309
4	Brakes	3.9%	248
5	Visibility	3.1%	196
6	Seat belts & restraints	0.7%	47

Failure rate by mileage

Higher-mileage cars tend to fail more — often the most useful guide to real condition.

MOT fail rate by recorded mileage band.

Fail rate by recorded mileage — 2021 Kona Gdi Hev S-A
Mileage band	Tests	Fail rate
0-30k	4,209	7.9%
30-60k	1,883	13.7%
60-90k	186	17.2%

Failure rate by age

How this model-year's MOT fail rate climbs as the cars get older.

Trend over time

Fail rate by dataset year — 2021 Kona Gdi Hev S-A
Dataset year	Tests	Fail rate
2023	109	7.3%
2024	3,059	9.4%
2025	3,136	10.6%

What to check before buying a 2021 Kona Gdi Hev S-A

Before buying a 2021 Hyundai Kona Gdi Hev S-A, focus on the areas it most often fails on. Tyres accounted for 6.3% of tests for this year.

Tyres (6.3% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
Visibility (3.1% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£150.
Lighting & signalling (2.6% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.

Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.

Frequently asked questions

How many 2021 Hyundai Kona Gdi Hev S-As pass their MOT?

90.0% of the 6,310 2021 Hyundai Kona Gdi Hev S-A MOT tests in this dataset passed — a 10.0% fail rate.

What is the most common MOT failure on a 2021 Hyundai Kona Gdi Hev S-A?

Tyres, recorded in 6.3% of tests, followed by visibility (3.1%).

Does the 2021 Kona Gdi Hev S-A get worse with mileage?

Its MOT fail rate rises from 7.9% in the 0-30k band to 17.2% in the 60-90k band.

Methodology & source. Based on 6,310 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.