2021 Hyundai Tucson N Line S T-Gdi — MOT failures & pass rate
Across 708 MOT tests analysed for the 2021 Hyundai Tucson N Line S T-Gdi, the most common recorded failure areas were visibility, tyres and lighting & signalling. Its pass rate of 94.8% was above the average for cars of a similar age (91.2%).
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Visibility | 4.0% | 28 |
| 2 | Tyres | 2.0% | 14 |
| 3 | Lighting & signalling | 0.4% | 3 |
| 4 | Emissions & environmental | 0.3% | 2 |
| 5 | Brakes | 0.3% | 2 |
| 6 | Body, structure & corrosion | 0.1% | 1 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Wipers | 29 |
| 2 | Washers | 9 |
| 3 | Tread depth | 8 |
| 4 | Tyre pressure monitoring system | 3 |
| 5 | Headlamp aim | 3 |
| 6 | Malfunction indicator lamp | 2 |
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 | 19.1% | 135 |
| 2 | Brakes | 8.8% | 62 |
| 3 | Other defects | 6.9% | 49 |
| 4 | Visibility | 2.3% | 16 |
| 5 | Emissions & environmental | 0.4% | 3 |
| 6 | Lighting & signalling | 0.3% | 2 |
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 | 403 | 5.2% |
| 30-60k | 296 | 5.4% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 350 | 6.0% |
| 2025 | 356 | 4.2% |
What to check before buying a 2021 Tucson N Line S T-Gdi
Before buying a 2021 Hyundai Tucson N Line S T-Gdi, focus on the areas it most often fails on. Visibility accounted for 4.0% of tests for this year.
- Visibility (4.0% 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 (2.0% 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 (0.4% 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 Tucson N Line S T-Gdis pass their MOT?
94.8% of the 708 2021 Hyundai Tucson N Line S T-Gdi MOT tests in this dataset passed — a 5.2% fail rate.
What is the most common MOT failure on a 2021 Hyundai Tucson N Line S T-Gdi?
Visibility, recorded in 4.0% of tests, followed by tyres (2.0%).
Does the 2021 Tucson N Line S T-Gdi get worse with mileage?
Its MOT fail rate rises from 5.2% in the 0-30k band to 5.4% in the 30-60k band.
Methodology & source. Based on 708 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.