2021 Suzuki Swift Sz5 Dualjet Mhev Cvt — MOT failures & pass rate
Across 1,244 MOT tests analysed for the 2021 Suzuki Swift Sz5 Dualjet Mhev Cvt, the most common recorded failure areas were visibility, tyres and brakes. 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 | 4.5% | 56 |
| 2 | Tyres | 1.8% | 22 |
| 3 | Brakes | 1.1% | 14 |
| 4 | Lighting & signalling | 1.0% | 12 |
| 5 | Seat belts & restraints | 0.2% | 3 |
| 6 | Other defects | 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 | 61 |
| 2 | Headlamp aim | 13 |
| 3 | Brake pads | 13 |
| 4 | Washers | 7 |
| 5 | Tyre pressure monitoring system | 2 |
| 6 | Service brake performance | 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 | 12.5% | 155 |
| 2 | Brakes | 5.9% | 73 |
| 3 | Visibility | 3.3% | 41 |
| 4 | Other defects | 3.2% | 40 |
| 5 | Seat belts & restraints | 0.4% | 5 |
| 6 | Road wheels | 0.3% | 4 |
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 | 1,109 | 4.4% |
| 30-60k | 125 | 6.4% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 615 | 4.5% |
| 2025 | 607 | 4.8% |
What to check before buying a 2021 Swift Sz5 Dualjet Mhev Cvt
Before buying a 2021 Suzuki Swift Sz5 Dualjet Mhev Cvt, focus on the areas it most often fails on. Visibility accounted for 4.5% of tests for this year.
- 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 (1.8% 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 (1.1% 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 Suzuki Swift Sz5 Dualjet Mhev Cvts pass their MOT?
95.4% of the 1,244 2021 Suzuki Swift Sz5 Dualjet Mhev Cvt 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 Cvt?
Visibility, recorded in 4.5% of tests, followed by tyres (1.8%).
Does the 2021 Swift Sz5 Dualjet Mhev Cvt get worse with mileage?
Its MOT fail rate rises from 4.4% in the 0-30k band to 6.4% in the 30-60k band.
Methodology & source. Based on 1,244 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.