DS Ds3 MOT Failures
An analysis of 411,397 real DVSA MOT tests on the DS Ds3 — what fails, how often, and how that compares to every other car on UK roads. Generations covered: DS3-1 (2010–2016), DS3-CB (2015–2023).
Where the DS Ds3 fails its MOT
The single biggest MOT failure point on the DS Ds3 is exhaust system damage — this model is 13 times more likely to fail on this item than the average car on UK roads. That makes it worth watching for anyone buying or owning this model. Across 411,397 MOT tests, 1.65% of all DS Ds3 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 any part of the noise suppression system insecure (12x the fleet average), transmission shaft constant velocity joint boot... (11x the fleet average), emissions failure (17x the fleet average), and body panel or body component (14x the fleet average). These ratios compare the DS Ds3'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, Exhaust & Emissions, Tyres, Brakes. If you're inspecting a DS Ds3 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 DS Ds3'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 DS Ds3 specifically, the DVSA data shows the most common failures at this mileage are transmission joint, belt or chain worn (16x the average) and brake hoses perished or damaged (15x). body panel or body component (12x) and any part of the noise suppression system insecure (12x) 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 DS Ds3 specifically, the DVSA data shows the most common failures at this mileage are emissions failure (17x the average) and body panel or body component (14x). transmission shaft constant velocity joint boot... (11x) and any part of the noise suppression system insecure (9.7x) 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 DS Ds3 specifically, the DVSA data shows the most common failures at this mileage are exhaust system damage (7.7x the average) and tyre wear or damage (6.3x).
The shift from transmission joint, belt or chain worn at lower mileages to exhaust system damage 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 DS Ds3 specialists and owners flag most frequently, drawn from manufacturer technical bulletins, workshop data, and verified owner reports.
Wet timing belt failure (DS3-CB 1.2 PureTech) Dangerous
The 1.2 PureTech engine uses a timing belt that runs in engine oil instead of a traditional dry timing belt. Affects DS3-CB; typical independent garage repair cost is £800–£1,200.
CV joint boot failure (all variants) Major
The DS3 shows exceptionally high CV joint boot failure rates, with MOT data showing 23.3 times the national fleet average for missing or damaged boots. Affects DS3-1, DS3-CB; typical independent garage repair cost is £100–£200.
Premature brake disc wear and failure Major
The DS3 shows brake disc wear at 6.4 times the national fleet average, with failures occurring even on very low mileage vehicles. Affects DS3-1, DS3-CB; typical independent garage repair cost is £200–£350.
Excessive transmission wear (1.2 PureTech) Major
MOT data shows transmission component wear at 15.9 times the national fleet average on 1.2 PureTech engines. Affects DS3-CB; typical independent garage repair cost is £800–£1,500.
For the complete picture — including repair costs across independent, specialist, and dealer garages — see the full DS Ds3 common problems breakdown.
What to check before buying a DS Ds3
Based on the MOT failure data and known issues above, here's what to prioritise when inspecting a DS Ds3:
Bodywork — check for exhaust system damage, transmission shaft constant velocity joint boot..., body panel or body component, transmission joint, belt or chain worn. Exhaust & Emissions — check for any part of the noise suppression system insecure, emissions failure.
Beyond the MOT items, ask specifically about wet timing belt failure and cv joint boot failure. These won't show up on a standard MOT but can be expensive to fix — repairs start from £800. 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 DS Ds3?
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DS Ds3 MOT FAQs
What are the most common MOT failures on a DS Ds3?
Based on 411,397 DVSA MOT tests, the most common failure is exhaust system damage — at 13x the national fleet average. Other frequent failures include any part of the noise suppression system insecure and transmission shaft constant velocity joint boot....
Is the DS Ds3 reliable based on MOT data?
The DS Ds3 has 14 MOT failure categories above the fleet average. Specialists also flag wet timing belt 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 DS Ds3 most commonly fails on exhaust system damage and tyre wear or damage. Under 60,000 miles, the main issues are transmission joint, belt or chain worn and brake hoses perished or damaged.
How do I check a DS Ds3'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.