2021 Dacia Duster Twenty Tce 4X2 — MOT failures & pass rate
Across 541 MOT tests analysed for the 2021 Dacia Duster Twenty Tce 4X2, the most common recorded failure areas were lighting & signalling, tyres and visibility. Its pass rate of 90.6% was in line with the average for cars of a similar age (91.3%).
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 7.8% | 42 |
| 2 | Tyres | 5.5% | 30 |
| 3 | Visibility | 5.2% | 28 |
| 4 | Brakes | 1.1% | 6 |
| 5 | Body, structure & corrosion | 0.5% | 3 |
| 6 | Steering | 0.5% | 3 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Headlamp aim | 40 |
| 2 | Wipers | 25 |
| 3 | Headlamp levelling device | 8 |
| 4 | Headlamp | 8 |
| 5 | Washers | 6 |
| 6 | Tread depth | 6 |
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 | 30.5% | 165 |
| 2 | Brakes | 13.3% | 72 |
| 3 | Other defects | 7.0% | 38 |
| 4 | Visibility | 2.6% | 14 |
| 5 | Suspension | 0.4% | 2 |
| 6 | Seat belts & restraints | 0.4% | 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 | 367 | 7.6% |
| 30-60k | 166 | 13.9% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 264 | 8.7% |
| 2025 | 257 | 10.5% |
What to check before buying a 2021 Duster Twenty Tce 4X2
Before buying a 2021 Dacia Duster Twenty Tce 4X2, focus on the areas it most often fails on. Lighting & signalling accounted for 7.8% of tests for this year.
- Lighting & signalling (7.8% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Tyres (5.5% 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.
- Visibility (5.2% 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.
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 Dacia Duster Twenty Tce 4X2s pass their MOT?
90.6% of the 541 2021 Dacia Duster Twenty Tce 4X2 MOT tests in this dataset passed — a 9.4% fail rate.
What is the most common MOT failure on a 2021 Dacia Duster Twenty Tce 4X2?
Lighting & signalling, recorded in 7.8% of tests, followed by tyres (5.5%).
Does the 2021 Duster Twenty Tce 4X2 get worse with mileage?
Its MOT fail rate rises from 7.6% in the 0-30k band to 13.9% in the 30-60k band.
Methodology & source. Based on 541 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.