Dacia Duster MOT Failures
An analysis of 715,222 real DVSA MOT tests on the Dacia Duster — what fails, how often, and how that compares to every other car on UK roads. Generations covered: GEN1 (2010–2017), GEN2 (2017–2024).
Where the Dacia Duster fails its MOT
The single biggest MOT failure point on the Dacia Duster is seat mounting fault — this model is 52 times more likely to fail on this item than the average car on UK roads. That makes it a major concern for anyone buying or owning this model. Across 715,222 MOT tests, 0.21% of all Dacia Duster tests recorded this as a failure.
Bodywork failures usually mean structural corrosion — not cosmetic rust, but rot that affects the car's structural integrity. Check sills, subframes, and chassis rails carefully, especially on older examples.
Other notable weak points include transmission shaft bearing worn (51x the fleet average), power steering fault (58x the fleet average), headlight fault (19x the fleet average), and electrical wiring fault (11x the fleet average). These ratios compare the Dacia Duster's failure rate on each item against the national average for all cars tested — a ratio of 10x means this model fails ten times more often than a typical car.
The failures span 4 categories: Bodywork, Steering, Lights & Electrics, Brakes. If you're inspecting a Dacia Duster before purchase, these are the areas to focus on — and if any have been flagged as advisories on a previous MOT, they're likely to become failures in the near future.
How failures change with mileage
The Dacia Duster's weak points shift as the car covers more miles. Understanding these patterns helps you know what to expect — and what to budget for — at each stage of ownership.
Under 60,000 miles
At this mileage, most failures are either design-related or caused by age rather than wear. Components like bushes and drop links may not have been replaced yet, and original-fit parts can deteriorate even on low-mileage cars that spend a lot of time sitting.
For the Dacia Duster specifically, the DVSA data shows the most common failures at this mileage are power steering fault (56x the average) and seat mounting fault (52x). transmission shaft bearing worn (16x) and electrical wiring fault (11x) also appear frequently.
60,000 to 100,000 miles
This is where routine wear items start to show up. Brake components, tyres, and exhaust parts have done serious work by this point. Cars that have been well serviced will show fewer of these failures — this mileage band is where good maintenance really separates the well-kept from the neglected.
For the Dacia Duster specifically, the DVSA data shows the most common failures at this mileage are transmission shaft bearing worn (27x the average) and seat mounting fault (23x). electrical wiring fault (9.9x) and headlight fault (9.9x) also appear frequently.
Over 100,000 miles
High-mileage cars accumulate failures across multiple systems. The key question isn't whether things will need doing — they will — but whether the car has been maintained well enough to keep on top of them. Look for a consistent service history and recent MOT passes with minimal advisories.
For the Dacia Duster specifically, the DVSA data shows the most common failures at this mileage are seat mounting fault (15x the average) and transmission joint, belt or chain worn (11x). brake pedal anti-slip provision missing, loose ... (11x) and power steering fault (8.3x) also appear frequently.
The shift from power steering fault at lower mileages to seat mounting fault at higher mileages is typical — early failures tend to be design or factory-related, while high-mileage failures reflect accumulated mechanical wear. A car that's been well maintained will usually dodge the worst of both.
Known issues beyond the MOT
An MOT only tests roadworthiness at a single point in time — it won't catch developing faults, intermittent problems, or issues that haven't yet reached the failure threshold. These are the issues that Dacia Duster specialists and owners flag most frequently, drawn from manufacturer technical bulletins, workshop data, and verified owner reports.
Transmission shaft bearing failure (1.5 dCi) Dangerous
The transmission shaft bearing on 1.5 dCi diesel variants fails at an exceptionally high rate, with MOT data showing 124.9 times the fleet average failure rate. Affects GEN1; typical independent garage repair cost is £1,200–£2,500.
Timing belt failure Dangerous
All Dacia Duster engines use interference timing belt designs where piston and valve paths overlap. Affects GEN1, GEN2; typical independent garage repair cost is £400–£600.
EPS system malfunction (1.6 petrol) Major
The electric power steering (EPS) system on 1.6 petrol variants fails at 151.3 times the fleet average rate, primarily between 40,000-60,000 miles. Affects GEN1, GEN2; typical independent garage repair cost is £600–£1,200.
Transmission joint deterioration (1.5 dCi) Major
The transmission flexible coupling on 1.5 dCi variants deteriorates at 124.9 times the fleet average rate. Affects GEN1; typical independent garage repair cost is £200–£400.
For the complete picture — including repair costs across independent, specialist, and dealer garages — see the full Dacia Duster common problems breakdown.
What to check before buying a Dacia Duster
Based on the MOT failure data and known issues above, here's what to prioritise when inspecting a Dacia Duster:
Bodywork — check for seat mounting fault, transmission shaft bearing worn, transmission joint, belt or chain worn. Steering — check for power steering fault. Lights & Electrics — check for headlight fault, electrical wiring fault.
Beyond the MOT items, ask specifically about transmission shaft bearing failure and timing belt failure. These won't show up on a standard MOT but can be expensive to fix — repairs start from £1,200. A specialist pre-purchase inspection is worth the investment on this model.
Always check the car's full MOT history for patterns — recurring advisories often become failures within 12 months. And verify the service history to confirm maintenance has been kept up to schedule. Enter any reg into our free car check to see the complete picture.
Looking at a specific Dacia Duster?
Enter the reg to see its full MOT history, mileage records, write-off status, and finance checks.
Dacia Duster MOT FAQs
What are the most common MOT failures on a Dacia Duster?
Based on 715,222 DVSA MOT tests, the most common failure is seat mounting fault — at 52x the national fleet average. Other frequent failures include transmission shaft bearing worn and power steering fault.
Is the Dacia Duster reliable based on MOT data?
The Dacia Duster has 11 MOT failure categories above the fleet average. Specialists also flag transmission shaft bearing failure as a concern. A pre-purchase inspection and service history check are recommended.
What MOT failures should I expect at high mileage?
Above 100,000 miles, the Dacia Duster most commonly fails on seat mounting fault and transmission joint, belt or chain worn. Under 60,000 miles, the main issues are power steering fault and seat mounting fault.
How do I check a Dacia Duster's MOT history?
Enter the registration number into our free car check above. You'll see every MOT test result, advisories and failures, mileage readings, write-off status, and finance checks.
MOT failure data sourced from DVSA bulk test records via data.gov.uk. Ratios compare this model's failure rate against the national fleet average. Known issues sourced from manufacturer bulletins, specialist workshops, and verified owner reports.