2021 Hyundai I30 Connect Mhev T-Gdi — MOT failures & pass rate
Across 877 MOT tests analysed for the 2021 Hyundai I30 Connect Mhev T-Gdi, the most common recorded failure areas were visibility, tyres and brakes. Its pass rate of 89.4% was below the average for cars of a similar age (91.2%). Higher-mileage examples failed more often — 17.8% in the 60-90k group versus 7.2% in the 0-30k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Visibility | 5.7% | 50 |
| 2 | Tyres | 3.4% | 30 |
| 3 | Brakes | 2.2% | 19 |
| 4 | Lighting & signalling | 1.6% | 14 |
| 5 | Emissions & environmental | 0.9% | 8 |
| 6 | Body, structure & corrosion | 0.9% | 8 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Wipers | 44 |
| 2 | Washers | 16 |
| 3 | Tread depth | 12 |
| 4 | Brake pads | 12 |
| 5 | Headlamp aim | 8 |
| 6 | Pins and bushes | 8 |
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 | 16.7% | 146 |
| 2 | Brakes | 13.3% | 117 |
| 3 | Suspension | 12.3% | 108 |
| 4 | Other defects | 7.2% | 63 |
| 5 | Visibility | 4.1% | 36 |
| 6 | Body, structure & corrosion | 1.0% | 9 |
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 | 432 | 7.2% |
| 30-60k | 395 | 13.2% |
| 60-90k | 45 | 17.8% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Hybrid | 677 | 9.6% |
| Petrol | 200 | 14.0% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 426 | 10.6% |
| 2025 | 437 | 10.8% |
What to check before buying a 2021 I30 Connect Mhev T-Gdi
Before buying a 2021 Hyundai I30 Connect Mhev T-Gdi, focus on the areas it most often fails on. Visibility accounted for 5.7% of tests for this year.
- Visibility (5.7% 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 (3.4% 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.
- Brakes (2.2% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
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 I30 Connect Mhev T-Gdis pass their MOT?
89.4% of the 877 2021 Hyundai I30 Connect Mhev T-Gdi MOT tests in this dataset passed — a 10.6% fail rate.
What is the most common MOT failure on a 2021 Hyundai I30 Connect Mhev T-Gdi?
Visibility, recorded in 5.7% of tests, followed by tyres (3.4%).
Does the 2021 I30 Connect Mhev T-Gdi get worse with mileage?
Its MOT fail rate rises from 7.2% in the 0-30k band to 17.8% in the 60-90k band.
Methodology & source. Based on 877 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.