Mazda 3 (2015)
2015 Mazda 3
CarHunch analysed 12,185 real MOT records for the 2015 Mazda 3.
Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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The 2015 Mazda 3 passes its MOT slightly above the UK average at 84%, which is encouraging—but a serious concern emerges in the detail: 40.9% of these cars have recorded a dangerous defect at some point, well above typical thresholds, suggesting structural or safety issues are common enough to warrant a pre-purchase inspection. Petrol versions edge out diesels by 1.7 percentage points (84.4% vs 82.7%), though both remain broadly comparable.
At 48,000 miles median, these cars are running relatively low mileage for their age, yet they're still averaging 1.67 failures and 11.6 advisories per test—pointing to wear items and minor faults accumulating steadily rather than catastrophic failures. Before buying, have a trusted mechanic inspect the suspension, brakes, and bodywork closely, as the high dangerous-defect rate suggests these areas need particular scrutiny.
The 2015 Mazda 3 has a decent first-time pass rate (84%), but a higher-than-average share of vehicles have had serious defects recorded — the individual vehicle's history matters a lot here.
These stats describe 12,185 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.
What tends to go wrong
Across 12,185 vehicles — figures show how many had each issue flagged at least once in their MOT history.
Data covers a 3-year window centred on 2015.
See this vehicle's full MOT history & AI hunches
Spot recurring advisories, hidden issues, and how it compares to 12,185 Mazda 3 cars.
Petrol vs Diesel
Pass rate difference of 1.7 percentage points — worth knowing if you're choosing between the two.
Before you buy a 2015 Mazda 3
Based on MOT data from 12,185 vehicles — here's what to check.
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Check the full MOT history.
40.9% of these vehicles have had a dangerous defect recorded -
recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle. -
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Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price.
Inspection
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Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically.
History
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (79%) | 9,643 | 84.4% | 1.65 |
| Diesel (21%) | 2,542 | 82.7% | 1.76 |
Colour Breakdown
Based on 162,087 Mazda 3 vehicles registered in the UK — across all years. From DVLA registration records.
Mileage Distribution
Most 2015 Mazda 3 vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2015 Mazda 3 vehicles fall between 36,074 and 61,091 miles.
2015 Mazda 3 — Still on the Road
Almost all 2015 Mazda 3s are still on the road.
Strong survival — 11,188 vehicles still getting MOTs in 2025, 94% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2018–2025.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.
MOT History Averages
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Compare with another model
See how the 2015 Mazda 3 stacks up against a rival.