The 2012 Vauxhall Astra sat 161,234 MOT tests between 2022 and 2024, passing first time in 65.7% of them. That puts it 14.8 points below the national average for cars its age.
Everything here comes from the DVSA's published MOT results, not a survey. For the other years we hold, see every Astra we've measured.
How reliable is the 2012 Astra?
At 65.7% first-time passes, the 2012 Vauxhall Astra is a weaker performer for its age, 14.8 points below the 80.5% average for cars aged 3 to 8.
Read that as a roadworthiness record, not a survey score. It counts how often one of these reaches the test station needing work, so a car with a careful owner and a full history can still beat the figure. Here is how the pass rate moves as the car ages:
First-time pass rate by vehicle age, 161,234 tests. Every cohort shown has at least 500 tests.
What goes wrong on the Astra
The area examiners flag most on this 2012 Astra is brakes, on 50.9% of tests: discs and pads are wear items on any car this age, so it is often just routine maintenance, but grinding, a spongy pedal or pulling to one side means budgeting for work.
Behind it comes emissions and leaks at 20.9%, exhaust, emissions and fluid leaks; on older diesels an emissions fail can point to a DPF or EGR problem that is not cheap to fix. Lights & electrics rounds out the top three at 19.6%.
None of this makes it a bad buy: these are the ordinary consequences of age and mileage. They just tell you what to look and listen for before you commit, with each figure linking through to the DVSA's own inspection criteria for that part.
Share of tests with a fail or advisory per component, this cohort only. Check the top items on any test drive.
What mileage should a 2012 Astra have?
A typical 2012 Astra shows around 84,912 miles by 9 years old, climbing to roughly 100,699 by 12. A car well above that has simply worked harder than average, which matters more for wear than for the MOT itself.
A car well below it is not automatically the better buy. 0.77% of Astras this age carry odometer readings that don't add up, so treat a suspiciously low reading as a reason to check the mileage history, not to relax. You can cross-check any figure against the DVSA's own MOT history record.
Average recorded mileage by age for this cohort. Use it as a yardstick against any individual car.
Vauxhall Astra reliability by year
First-time pass rates for adjacent registration years of the same model. A big step change usually marks a facelift or new generation.
Before you buy one
Start where the data points: inspect brakes first on any viewing, since it flags on 50.9% of these. Then run the exact car through a free MOT check to see its own history against these averages.
Two things this data cannot show: open recalls, and hidden finance or write-offs. Check recalls with the government's recall service; for the rest, our methodology explains where the public record stops.