2021 Suzuki Swace Sz-T Hev — MOT failures & pass rate
Across 1,583 MOT tests, the 2021 Suzuki Swace Sz-T Hev recorded a 92.2% pass rate. That is effectively the same as all cars of a similar age (8.6% 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
No single area dominates — visibility (4.5%) and tyres (4.2%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are wipers, headlamp aim and washers — wipers alone was recorded 66 times.
A 90-120k example is materially riskier than a 0-30k one: 13.7% versus 4.6%.
Tyres is the most common advisory, noted on 19.3% of tests — work that passed today but is likely due soon.
The trend is worsening — 3.5% of tests failed in 2023 against 6.8% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Visibility | 4.5% | 72 |
| 2 | Tyres | 4.2% | 67 |
| 3 | Lighting & signalling | 2.0% | 31 |
| 4 | Brakes | 0.6% | 9 |
| 5 | Body, structure & corrosion | 0.3% | 4 |
| 6 | Suspension | 0.3% | 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 | 66 |
| 2 | Headlamp aim | 31 |
| 3 | Washers | 24 |
| 4 | Tread depth | 21 |
| 5 | Tyre pressure monitoring system | 7 |
| 6 | Brake discs | 7 |
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 | 19.3% | 305 |
| 2 | Brakes | 10.4% | 164 |
| 3 | Other defects | 7.0% | 110 |
| 4 | Visibility | 3.0% | 48 |
| 5 | Suspension | 1.1% | 18 |
| 6 | Lighting & signalling | 1.0% | 16 |
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 | 658 | 4.6% |
| 30-60k | 653 | 9.8% |
| 60-90k | 204 | 10.8% |
| 90-120k | 51 | 13.7% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2023 | 58 | 3.5% |
| 2024 | 762 | 9.3% |
| 2025 | 748 | 6.8% |
What to check before buying a 2021 Swace Sz-T Hev
The failure pattern for this year is specific enough to inspect against: visibility accounted for 4.5% of tests. Start there.
- Visibility (4.5% 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 (4.2% 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 Suzuki Swace Sz-T Hevs pass their MOT?
92.2% of the 1,583 2021 Suzuki Swace Sz-T Hev MOT tests in this dataset passed — a 7.8% fail rate.
What is the most common MOT failure on a 2021 Suzuki Swace Sz-T Hev?
Visibility, recorded in 4.5% of tests, followed by tyres (4.2%).
Does the 2021 Swace Sz-T Hev get worse with mileage?
Its MOT fail rate rises from 4.6% in the 0-30k band to 13.7% in the 90-120k band.
Methodology & source. Based on 1,583 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.