2021 Dacia Duster Comfort Lpg Tce 4X2 — MOT failures & pass rate
The 2021 Dacia Duster Comfort Lpg Tce 4X2 passed 88.8% of its 884 recorded MOT tests. All cars of a similar age fail 8.6% of the time, so this is 2.6pp worse than the group it competes with. Failures cluster in lighting & signalling, tyres and visibility.
What the MOT record shows
Lighting & signalling dominates the failure mix at 9.8% of all tests — 5.1 points clear of tyres, so it is the first thing to check.
At component level the recurring items are headlamp aim, headlamp and tread depth — headlamp aim alone was recorded 56 times.
Condition tracks the odometer closely. Failures run at 8.9% in the 0-30k band and 18.2% in the 60-90k band, a 9.3-point spread — more than double.
Advisories point at the next bill rather than this one: tyres was flagged on 22.5% of tests without failing them.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 9.8% | 87 |
| 2 | Tyres | 4.8% | 42 |
| 3 | Visibility | 4.2% | 37 |
| 4 | Brakes | 2.3% | 20 |
| 5 | Steering | 0.4% | 4 |
| 6 | Suspension | 0.3% | 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 | 56 |
| 2 | Headlamp | 38 |
| 3 | Tread depth | 29 |
| 4 | Wipers | 26 |
| 5 | Washers | 17 |
| 6 | Brake pads | 14 |
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 | 22.5% | 199 |
| 2 | Brakes | 12.6% | 111 |
| 3 | Other defects | 6.6% | 58 |
| 4 | Visibility | 2.1% | 19 |
| 5 | Suspension | 0.9% | 8 |
| 6 | Lighting & signalling | 0.7% | 6 |
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 | 482 | 8.9% |
| 30-60k | 368 | 13.6% |
| 60-90k | 33 | 18.2% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 430 | 11.9% |
| 2025 | 440 | 10.4% |
What to check before buying a 2021 Duster Comfort Lpg Tce 4X2
On a 2021 Duster Comfort Lpg Tce 4X2, lighting & signalling is what the MOT record says goes wrong most — it appeared in 9.8% of tests. Check these areas before you commit.
- Lighting & signalling (9.8% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Tyres (4.8% 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.
- Visibility (4.2% 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 Comfort Lpg Tce 4X2s pass their MOT?
88.8% of the 884 2021 Dacia Duster Comfort Lpg Tce 4X2 MOT tests in this dataset passed — a 11.2% fail rate.
What is the most common MOT failure on a 2021 Dacia Duster Comfort Lpg Tce 4X2?
Lighting & signalling, recorded in 9.8% of tests, followed by tyres (4.8%).
Does the 2021 Duster Comfort Lpg Tce 4X2 get worse with mileage?
Its MOT fail rate rises from 8.9% in the 0-30k band to 18.2% in the 60-90k band.
Methodology & source. Based on 884 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.