2021 Hyundai Bayon Connect T- — MOT failures & pass rate
The 2021 Hyundai Bayon Connect T- passed 91.2% of its 951 recorded MOT tests. That is effectively the same as all cars of a similar age (8.7% fail rate), so the MOT record here is unremarkable in either direction. Failures cluster in visibility, tyres and lighting & signalling.
What the MOT record shows
One area stands out: visibility, recorded in 7.1% of tests against 3.4% for the next-worst category.
At component level the recurring items are wipers, washers and headlamp aim — wipers alone was recorded 77 times.
Tyres is the most common advisory, noted on 15.0% of tests — work that passed today but is likely due soon.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Visibility | 7.1% | 68 |
| 2 | Tyres | 3.4% | 32 |
| 3 | Lighting & signalling | 2.0% | 19 |
| 4 | Brakes | 1.2% | 11 |
| 5 | Emissions & environmental | 0.5% | 5 |
| 6 | Seat belts & restraints | 0.4% | 4 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Wipers | 77 |
| 2 | Washers | 13 |
| 3 | Headlamp aim | 12 |
| 4 | Rbt (sp) | 6 |
| 5 | Tread depth | 5 |
| 6 | Parking brake performance | 4 |
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 | 15.0% | 143 |
| 2 | Brakes | 9.3% | 88 |
| 3 | Other defects | 4.0% | 38 |
| 4 | Visibility | 3.0% | 29 |
| 5 | Suspension | 1.4% | 13 |
| 6 | Seat belts & restraints | 0.9% | 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 | 644 | 8.1% |
| 30-60k | 294 | 10.5% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 472 | 9.1% |
| 2025 | 476 | 8.6% |
What to check before buying a 2021 Bayon Connect T-
The failure pattern for this year is specific enough to inspect against: visibility accounted for 7.1% of tests. Start there.
- Visibility (7.1% 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.
- 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.
- 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 Bayon Connect T-s pass their MOT?
91.2% of the 951 2021 Hyundai Bayon Connect T- MOT tests in this dataset passed — a 8.8% fail rate.
What is the most common MOT failure on a 2021 Hyundai Bayon Connect T-?
Visibility, recorded in 7.1% of tests, followed by tyres (3.4%).
Does the 2021 Bayon Connect T- get worse with mileage?
Its MOT fail rate rises from 8.1% in the 0-30k band to 10.5% in the 30-60k band.
Methodology & source. Based on 951 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.