2015 Mazda 6 (first used 2015) MOT pass rate, common failures & what to check
In 2025, 70.9% of Mazda 6s first used in 2015 passed their MOT first time, against 71.9% for all cars first used in 2015. Across 19,759 6 first tests from 2023 to 2025, the most common failure areas were suspension, brakes and tyres.
This page analyses first MOT tests for Mazda 6s first used in 2015 (all trims grouped): 2021 to 2025 for the pass-rate trend, and 2023 to 2025 for the failure and advisory analysis — plus what is worth checking before you buy one.
Data: DVSA anonymised MOT tests to December 2025 · Calculated by SortedCars · Updated October 2026
How the 2015 Mazda 6 MOT pass rate has changed
Share of first tests passed in each year, 6s first used in 2015 against all cars first used in 2015 (any make or fuel; not adjusted for mileage, fuel or use). In 2025 the 6 figure was 1.0 points lower.
View this chart as a table
| Test year | 2015 6 | All cars first used 2015 | 6 first tests |
|---|---|---|---|
| 2021 | 80.9% | 79.7% | 7,134 |
| 2022 | 79.1% | 77.8% | 6,983 |
| 2023 | 76.8% | 75.5% | 6,838 |
| 2024 | 74.7% | 73.5% | 6,659 |
| 2025 | 70.9% | 71.9% | 6,262 |
Common 2015 Mazda 6 MOT failures
Share of the 5,098 failed first tests (2023–2025) with at least one failure in each area. A test can fail in more than one area, so the shares add up to more than 100%.
Most common failure items
| DVSA failure item | Share of failed first tests | Tests |
|---|---|---|
| Coil spring: fractured or broken | 18.8% | 956 |
| Brake pads: less than 1.5 mm thick | 12.3% | 626 |
| Ball joint: excessively worn | 10.9% | 558 |
| Tread depth: below requirements of 1.6mm | 8.0% | 407 |
| Position lamp: not working | 7.6% | 388 |
Item names are DVSA’s own wording. 2023–2025 combined.
Enter the car's registration to run the check.
Free · opens our free car check — no sign-in needed.
Typical repair costs for common MOT failures
Typical UK garage prices for the job, not for a 6 in particular, and not a quote.
| Failure item | Typical job | Typical UK price | Usual range |
|---|---|---|---|
| Coil spring: fractured or broken | Coil spring replacement | £248 | £175–£400 |
| Ball joint: excessively worn | Ball joint replacement | £90 | £60–£150 |
From published UK repair-cost guides, checked September 2026. Only jobs with a published typical price are shown.
What to check on a 2015 Mazda 6 before buying
The three areas where failed first tests most often had a fault, 2023–2025.
- Suspension. Worth looking behind the front wheels with a torch at the coil springs, and listening for knocks over bumps on the test drive.
- Brakes. Worth looking at the discs and pads through the wheel spokes for scoring and a worn lip, and noticing on the test drive whether the car pulls to one side or the pedal feels long.
- Tyres. Worth checking the tread depth across the whole width of each tyre, and the sidewalls for cuts, cracks and bulges.
Common 2015 Mazda 6 MOT advisories
Advisories are points the tester noted that did not fail the car. Most common on 2015 6s, as a share of all 19,759 first tests, 2023–2025.
| DVSA advisory item | Share of first tests | Tests |
|---|---|---|
| Tread depth: worn close to legal limit/worn on edge | 16.5% | 3,260 |
| Brake pads: wearing thin | 12.2% | 2,416 |
| Brake discs: worn, pitted or scored, but not seriously weakened | 10.4% | 2,058 |
| Suspension arm pins and bushes: pin or bush worn but not resulting in excessive movement | 9.9% | 1,947 |
| Tyre condition: slightly damaged/cracking or perishing | 8.4% | 1,668 |
Questions about the 2015 Mazda 6 MOT
What is the MOT pass rate of a 2015 Mazda 6?
In 2025, 70.9% of 6s first used in 2015 passed their MOT first time, against 71.9% for all cars first used in 2015. A car fixed during the test counts as a fail.
What does a 2015 6 most often fail its MOT on?
Suspension (in 44.1% of failed first tests, 2023–2025), brakes (24.3%) and tyres (20.7%). The single most common item was “Coil spring: fractured or broken” (18.8%).
How often does a 2015 Mazda 6 fail its MOT?
In 2025, 29.1% of first tests on 6s first used in 2015 did not pass first time: 25.3% failed, and a further 3.8% had a fault fixed during the test (counted as a fail here). Across 2023–2025, 5,098 of 19,759 first tests did not pass first time.
What are the most common 2015 Mazda 6 MOT advisories?
“Tread depth: worn close to legal limit/worn on edge” (on 16.5% of first tests, 2023–2025), “Brake pads: wearing thin” (12.2%), “Brake discs: worn, pitted or scored, but not seriously weakened” (10.4%), “Suspension arm pins and bushes: pin or bush worn but not resulting in excessive movement” (9.9%) and “Tyre condition: slightly damaged/cracking or perishing” (8.4%).
Is a 2015 Mazda 6 reliable?
An MOT pass rate shows what failed at the test, not how reliable a car is. For this group of cars the first-time pass rate went from 80.9% in 2021 to 70.9% in 2025. For one particular car, its own MOT history matters more than the average.
Other cars first used in 2015
The most-tested cars from the same year. Each page uses the same method.
2015 Ford Fiesta MOT statistics · 2015 Vauxhall Corsa MOT statistics · 2015 Ford Focus MOT statistics · 2015 Volkswagen Golf MOT statistics · 2015 Nissan Qashqai MOT statistics
Checking a specific 2015 6?
The numbers above cover every 6 first used in 2015 and tested in Great Britain. Our free check shows the actual MOT history, mileage record and tax status of the one you are looking at.
Enter the car's registration to run the check.
Free · no sign-in needed.