2005 Mazda 6 (first used 2005) MOT pass rate, common failures & what to check
In 2025, 52.2% of Mazda 6s first used in 2005 passed their MOT first time, against 57.6% for all cars first used in 2005. Across 2,449 6 first tests from 2023 to 2025, the most common failure areas were lamps and electrical equipment, suspension and brakes.
This page analyses first MOT tests for Mazda 6s first used in 2005 (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 2005 Mazda 6 MOT pass rate has changed
Share of first tests passed in each year, 6s first used in 2005 against all cars first used in 2005 (any make or fuel; not adjusted for mileage, fuel or use). In 2025 the 6 figure was 5.4 points lower.
View this chart as a table
| Test year | 2005 6 | All cars first used 2005 | 6 first tests |
|---|---|---|---|
| 2021 | 47.4% | 54.6% | 2,002 |
| 2022 | 50.1% | 55.7% | 1,441 |
| 2023 | 48.3% | 56.3% | 1,084 |
| 2024 | 49.6% | 56.5% | 802 |
| 2025 | 52.2% | 57.6% | 563 |
Common 2005 Mazda 6 MOT failures
Share of the 1,233 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 |
|---|---|---|
| Component mounting prescribed areas: prescribed area excessively corroded significantly reducing structural strength | 22.7% | 280 |
| Position lamp: not working | 20.4% | 251 |
| Parking brake efficiency (sp): efficiency below requirements | 11.4% | 140 |
| Headlamp aim: projected beam image is obviously incorrect | 9.2% | 113 |
| Wipers: does not clear the windscreen effectively | 8.5% | 105 |
Item names are DVSA’s own wording. 2023–2025 combined.
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What to check on a 2005 Mazda 6 before buying
The three areas where failed first tests most often had a fault, 2023–2025.
- Lamps and electrics. Ask someone to watch while you work the brake lights, indicators, sidelights, dipped and main beam, and the number-plate lamps.
- 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.
Common 2005 Mazda 6 MOT advisories
Advisories are points the tester noted that did not fail the car. Most common on 2005 6s, as a share of all 2,449 first tests, 2023–2025.
| DVSA advisory item | Share of first tests | Tests |
|---|---|---|
| Tread depth: worn close to legal limit/worn on edge | 17.8% | 435 |
| Sub-frame: corroded but not seriously weakened | 15.5% | 380 |
| Suspension arm: corroded but not seriously weakened | 12.4% | 303 |
| Brake discs: worn, pitted or scored, but not seriously weakened | 11.8% | 288 |
| Component mounting prescribed areas: prescribed area is corroded but not considered excessive | 11.4% | 280 |
Questions about the 2005 Mazda 6 MOT
What is the MOT pass rate of a 2005 Mazda 6?
In 2025, 52.2% of 6s first used in 2005 passed their MOT first time, against 57.6% for all cars first used in 2005. A car fixed during the test counts as a fail.
What does a 2005 6 most often fail its MOT on?
Lamps and electrical equipment (in 47.4% of failed first tests, 2023–2025), suspension (43.3%) and brakes (35.4%). The single most common item was “Component mounting prescribed areas: prescribed area excessively corroded significantly reducing structural strength” (22.7%).
How often does a 2005 Mazda 6 fail its MOT?
In 2025, 47.8% of first tests on 6s first used in 2005 did not pass first time: 41.2% failed, and a further 6.6% had a fault fixed during the test (counted as a fail here). Across 2023–2025, 1,233 of 2,449 first tests did not pass first time.
What are the most common 2005 Mazda 6 MOT advisories?
“Tread depth: worn close to legal limit/worn on edge” (on 17.8% of first tests, 2023–2025), “Sub-frame: corroded but not seriously weakened” (15.5%), “Suspension arm: corroded but not seriously weakened” (12.4%), “Brake discs: worn, pitted or scored, but not seriously weakened” (11.8%) and “Component mounting prescribed areas: prescribed area is corroded but not considered excessive” (11.4%).
Is a 2005 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 47.4% in 2021 to 52.2% in 2025. For one particular car, its own MOT history matters more than the average.
Other cars first used in 2005
The most-tested cars from the same year. Each page uses the same method.
2005 Ford Fiesta MOT statistics · 2005 MINI Hatch MOT statistics · 2005 Ford Focus MOT statistics · 2005 Volkswagen Golf MOT statistics · 2005 Toyota Yaris MOT statistics
Checking a specific 2005 6?
The numbers above cover every 6 first used in 2005 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.
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