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Dacia DUSTER - 2021

82.0 faults per 100 tests
Year average for all cars of 2021 is 80.0 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Dacia DUSTER, model year 2021. Sample size: 8,834 cars, 19,528 tests and 16,008 recorded faults.
0%
More faults compared to the average car of same model year

Quick summary

Total: 8,834 cars

The 2021 Dacia Duster has an overall defect rate of 82 per 100 vehicles, which is slightly higher than the yearly average of 79 per 100, indicating a 4% increase in issues compared to similar cars. Notably, the model shows significantly higher defects in the steering, lights and electrics, and equipment categories, with rates of 1.1%, 25.2%, and 2.7% respectively, which exceed the average for these areas. However, it performs better in the "Other" defects category, with a rate of just 1.6%, compared to the average of 2.6%. Mileage-related trends reveal that defect rates generally increase with mileage, but the Duster maintains a consistent pattern with lower defects in the highest mileage bracket.

Cars by mileage segment

Total: 8,834 cars

Categories

Brakes
▲ 11.5% better
35.4 faults / 100 tests
Year avg: 40.0 / 100 tests
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake disc or drum: significantly and obviously worn
  • Brake lining or pad: worn below 1.5mm
  • Brake lining or pad: worn below 1.5mm
  • Brake pipe damaged or excessively corroded
Steering
▼ 57.1% worse
1.1 faults / 100 tests
Year avg: 0.7 / 100 tests
  • A steering ball joint: with excessive wear or free play
  • EPS MIL indicating a system malfunction
  • A steering ball joint: with excessive wear or free play
  • EPS MIL indicating a system malfunction
  • Power steering fluid leaking or system malfunctioning
Visibility
▲ 10.3% better
13.0 faults / 100 tests
Year avg: 14.5 / 100 tests
  • Wiper blade: defective
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
  • Wiper blade: missing or obviously not clearing the windscreen
  • Wiper blade: missing or obviously not clearing the windscreen
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
Lights & Electrics
▼ 125.0% worse
25.2 faults / 100 tests
Year avg: 11.2 / 100 tests
  • The aim of a headlamp is not within limits laid down in the requirements
  • Beam image obviously incorrect
  • Beam image obviously incorrect
  • A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
  • A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
Wheels & Suspension
▲ 4.7% better
83.2 faults / 100 tests
Year avg: 87.3 / 100 tests
  • Tyre tread depth not in accordance with the requirements
  • Tyre tread depth not in accordance with the requirements
  • A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
Body/Structure
▲ 19.0% better
1.7 faults / 100 tests
Year avg: 2.1 / 100 tests
  • A driver’s seat: insecure
  • A driver’s seat: with a defective structure
  • A transmission shaft constant velocity joint boot: severely deteriorated
  • A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
  • A driver’s seat: seat moving inadvertently or backrest cannot be retained in the upright position
Equipment
▼ 80.0% worse
2.7 faults / 100 tests
Year avg: 1.5 / 100 tests
  • Seat belt buckle missing, damaged or not functioning as intended
  • A seat belt:
  • ESC MIL indicates a system malfunction
  • A seat belt: webbing or flexible stalk significantly stretched or weakened
  • A seat belt: or flexible stalk damaged
Other
▲ 40.7% better
1.6 faults / 100 tests
Year avg: 2.7 / 100 tests
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
  • Lambda coefficient outside the default limits or the range specified by the manufacturer
  • Emissions test unable to be completed
  • Engine MIL inoperative or indicating a malfunction
  • Engine MIL inoperative or indicating a malfunction

Fault rate by mileage segment

Model    Year average
0 268 0–31,000 mi 31,000–62,000 62,000–93,000 93,000–124,000 124,000+
* Metric: faults per 100 tests.

Most common faults (Top 10)

Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 4,837
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 1,857
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 1,138
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 1,070
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 717
The aim of a headlamp is not within limits laid down in the requirements
PRS
Occurrences: 543
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 399
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 340
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
PRS
Occurrences: 299
Beam image obviously incorrect
PRS
Occurrences: 281

Serious faults (Top 10)

Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 399
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 340
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 277
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 268
Beam image obviously incorrect
FAIL
Occurrences: 264
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 193
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 156
Headlamp aim unable to be tested
FAIL
Occurrences: 115
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 111
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 109