2021 Suzuki Swift Sz5 Dualjet Mhev — MOT failures & pass rate
Across 2,061 MOT tests analysed for the 2021 Suzuki Swift Sz5 Dualjet Mhev, the most common recorded failure areas were visibility, brakes and tyres. Its pass rate of 95.4% 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 | 4.7% | 96 |
| 2 | Brakes | 1.5% | 30 |
| 3 | Tyres | 1.3% | 26 |
| 4 | Lighting & signalling | 1.2% | 25 |
| 5 | Suspension | 0.2% | 4 |
| 6 | Seat belts & restraints | 0.2% | 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 | 111 |
| 2 | Headlamp aim | 19 |
| 3 | Brake pads | 17 |
| 4 | Service brake performance | 12 |
| 5 | Washers | 9 |
| 6 | Tread depth | 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 | 15.3% | 316 |
| 2 | Brakes | 9.3% | 191 |
| 3 | Other defects | 3.5% | 73 |
| 4 | Visibility | 3.3% | 68 |
| 5 | Suspension | 0.4% | 8 |
| 6 | Lighting & signalling | 0.2% | 5 |
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 | 1,581 | 3.4% |
| 30-60k | 434 | 8.8% |
| 60-90k | 41 | 4.9% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 1,033 | 4.8% |
| 2025 | 1,006 | 4.4% |
What to check before buying a 2021 Swift Sz5 Dualjet Mhev
Before buying a 2021 Suzuki Swift Sz5 Dualjet Mhev, focus on the areas it most often fails on. Visibility accounted for 4.7% of tests for this year.
- Visibility (4.7% 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.
- Brakes (1.5% 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.
- Tyres (1.3% 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.
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 Swift Sz5 Dualjet Mhevs pass their MOT?
95.4% of the 2,061 2021 Suzuki Swift Sz5 Dualjet Mhev MOT tests in this dataset passed — a 4.6% fail rate.
What is the most common MOT failure on a 2021 Suzuki Swift Sz5 Dualjet Mhev?
Visibility, recorded in 4.7% of tests, followed by brakes (1.5%).
Does the 2021 Swift Sz5 Dualjet Mhev get worse with mileage?
Its MOT fail rate rises from 3.4% in the 0-30k band to 4.9% in the 60-90k band.
Methodology & source. Based on 2,061 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.