2021 Hyundai I20 Mhev T-Gdi — MOT failures & pass rate
Across 2,512 MOT tests analysed for the 2021 Hyundai I20 Mhev T-Gdi, the most common recorded failure areas were visibility, tyres and lighting & signalling. Its pass rate of 90.7% was in line with the average for cars of a similar age (91.2%).
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Visibility | 5.9% | 149 |
| 2 | Tyres | 4.1% | 104 |
| 3 | Lighting & signalling | 2.0% | 50 |
| 4 | Suspension | 0.9% | 22 |
| 5 | Seat belts & restraints | 0.4% | 10 |
| 6 | Brakes | 0.4% | 10 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Wipers | 159 |
| 2 | Headlamp aim | 40 |
| 3 | Washers | 30 |
| 4 | Horn | 17 |
| 5 | Tread depth | 10 |
| 6 | Wheel bearings | 10 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Tyres | 17.4% | 438 |
| 2 | Other defects | 4.6% | 115 |
| 3 | Brakes | 3.8% | 96 |
| 4 | Visibility | 2.7% | 68 |
| 5 | Lighting & signalling | 0.7% | 18 |
| 6 | Seat belts & restraints | 0.6% | 15 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 1,812 | 8.6% |
| 30-60k | 672 | 11.2% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Hybrid | 2,384 | 9.4% |
| Petrol | 128 | 7.0% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2023 | 42 | 9.5% |
| 2024 | 1,247 | 10.4% |
| 2025 | 1,223 | 8.1% |
What to check before buying a 2021 I20 Mhev T-Gdi
Before buying a 2021 Hyundai I20 Mhev T-Gdi, focus on the areas it most often fails on. Visibility accounted for 5.9% of tests for this year.
- Visibility (5.9% 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.
- Tyres (4.1% 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.
- Lighting & signalling (2.0% 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 I20 Mhev T-Gdis pass their MOT?
90.7% of the 2,512 2021 Hyundai I20 Mhev T-Gdi MOT tests in this dataset passed — a 9.3% fail rate.
What is the most common MOT failure on a 2021 Hyundai I20 Mhev T-Gdi?
Visibility, recorded in 5.9% of tests, followed by tyres (4.1%).
Does the 2021 I20 Mhev T-Gdi get worse with mileage?
Its MOT fail rate rises from 8.6% in the 0-30k band to 11.2% in the 30-60k band.
Methodology & source. Based on 2,512 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.