(2021 registrations)
extension
that extension
check first
The Corsa was Britain’s best-selling new car in 2021, which is exactly why so many 2021 cars are now on the used market. The Corsa F is a genuinely better car than the model it replaced, built on Stellantis underpinnings and offered as the all-electric Corsa-e. But it inherited one component with a serious reputation, and Stellantis has extended warranty cover specifically because of it. If you read one section on this page, make it the next one.
Figures are derived from the DVSA anonymised MOT tests and results dataset, published under the Open Government Licence v3.0. Every MOT records the test outcome plus each defect as a coded “reason for rejection” or advisory.
Percentages are share of tests, not share of failures — so “2.6% tyre tread” means 2.6 in every 100 tests failed for that item. A single test can record several defects, so the columns do not sum to 100%.
A UK car does not need its first MOT until it is three years old, so a 2021 registration reached its first test in 2024. Every figure on this page describes that registration year and no other.
The 2021 cohort is real but young. It is large enough to be useful — the Corsa was Britain’s best-selling new car that year — while still reflecting cars at their first test rather than over a lifetime.
On a car this young, outstanding recalls, remaining manufacturer warranty and a service record showing the correct oil tell you more than any pass rate can.
Top MOT failure items
These are the defects that actually caused a Vauxhall Corsa (2021) to fail its MOT, ranked by how often they appear across all tests.
Most common MOT advisories
Advisories are the early-warning layer. They don’t fail the car, but they tell you what the next owner will be paying for — and they are the single most useful thing to read before you buy.
| Advisory item | Share of tests | What it means |
|---|---|---|
| Tyre worn close to legal limit | 10.9% | Cheap to replace on 16in wheels. |
| Brake pads wearing thin | 8.1% | Budget £120–£240 per axle. |
| Brake disc lightly corroded | 5.2% | Common on low-mileage city cars. |
| Wiper blade deteriorated | 3.4% | Trivial but a straightforward failure. |
| Suspension bush slight deterioration | 2.6% | Early wear only. |
| Engine oil leak (not excessive) | 2.2% | Worth investigating on a PureTech. |
| Brake fluid contaminated | 1.7% | Due around three years. |
| Exhaust minor corrosion | 1.3% | Surface only at this age. |
| Ball joint dust cover deteriorated | 1.0% | Cheap to fix now. |
| Coil spring corroded | 0.6% | Much rarer than on the old Corsa. |
Which system fails most
Grouping every recorded defect by vehicle system shows where the money goes on a three-year-old Corsa.
Across 1,196,303 MOT tests on all Vauxhall Corsa generations, the pass rate is 70.9%, with an average repair bill of around £114. That figure is driven almost entirely by ageing Corsa D and E cars.
The modern car is far better: 2021 registrations pass at 89.8%. If you are comparing a Corsa F against its predecessor, do not use the model-level number — see our 2015 Corsa page for that generation.
Model averages describe the model. Enter the registration to see this car’s real MOT history, every recorded advisory, its mileage timeline and any finance, theft or write-off markers.
The 1.2 PureTech wet belt — read this first
This is the defining issue of the Corsa F, and of Stellantis petrol engines generally. It is serious enough that the manufacturer extended warranty cover specifically to address it. Which engine the car has should drive your decision.
- The belt runs inside the engine in oil, and has a well-documented history of premature breakdown.
- As it degrades, debris clogs the oil pickup and strainer — which starves the engine of oil and turns a belt job into an engine job.
- Reported at relatively low mileages on some 2020 cars.
- Stellantis extended cover to 10 years / 112,000 miles in March 2024, conditional on servicing being done on time with the correct oil.
- The mild hybrid does not have the wet belt issue.
- The all-electric Corsa-e sidesteps it entirely — no belt, no oil, no DPF.
- If you want a Corsa F and want to avoid this question altogether, these are the versions to shortlist.
- On an EV, focus instead on battery health, charging history and remaining battery warranty.
Known faults the MOT won’t catch
The MOT tests roadworthiness, not mechanical health. These are the expensive items owners actually report — costs are indicative UK independent-specialist ranges, not quotes.
Pre-purchase checklist
Work through this in order. The first few cost nothing and rule out most bad cars.
- Identify the engine before anything else. 1.2 PureTech, mild hybrid, or electric Corsa-e — this decides your risk.
- On a PureTech, demand the full service record with correct-spec oil. Without it the 10-year wet belt cover does not protect you.
- Ask whether the wet belt has already been replaced, and get the invoice if so.
- Listen for a rattle from the belt housing and check the oil for debris or sludge.
- On a Corsa-e, request a battery state-of-health reading and confirm remaining battery warranty.
- Check outstanding recalls by registration.
- Test the infotainment and stop-start thoroughly on the test drive.
- Verify finance and write-off status — young cars often carry outstanding finance.
FAQs
Is the Vauxhall Corsa F reliable?
Considerably more so than the model-level MOT figure suggests. 2021 registrations pass at 89.8%, against 70.9% for all Corsa generations combined, because the older Corsa D and E drag that average down. The one significant caveat is the 1.2 PureTech wet belt.
What is the PureTech wet belt problem?
The 1.2 PureTech timing belt runs inside the engine in oil. It can degrade prematurely, and the debris blocks the oil pickup strainer, starving the engine of oil. Stellantis extended warranty cover to 10 years or 112,000 miles in March 2024, conditional on the car having been serviced on time with the correct oil.
Which Corsa engine avoids the wet belt issue?
The mild hybrid does not have the wet belt problem, and the all-electric Corsa-e avoids it entirely. If you want a Corsa F without this question hanging over it, shortlist those versions.
Am I covered if the wet belt fails?
Potentially. Stellantis extended cover to 10 years or 112,000 miles and operates a UK compensation portal, but cover depends on servicing having been carried out on schedule with the correct oil specification. This is why the service book matters more than anything else on a PureTech car.
Is the Corsa F better than the old Corsa?
On MOT data, clearly. The Corsa F does not show the broken springs and corrosion that define the older car's failure profile. See our 2015 Corsa page for a direct comparison of that generation.
A CarCheckReport covers MOT and advisory history, mileage anomalies, outstanding finance, insurance write-off records, stolen markers, import and scrapped status — using DVLA, DVSA and Experian data.