2005 Mazda MX-5 MOT pass rate, common failures & what to check
In 2025, 66.1% of Mazda MX-5s first used in 2005 passed their MOT first time, against 57.6% for all cars first used in 2005. Across 9,745 MX-5 first tests from 2023 to 2025, the most common failure areas were suspension, brakes and lamps and electrical equipment.
This page analyses first MOT tests for Mazda MX-5s 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 MX-5 MOT pass rate has changed
Share of first tests passed in each year, MX-5s 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 MX-5 figure was 8.5 points higher.
View this chart as a table
| Test year | 2005 MX-5 | All cars first used 2005 | MX-5 first tests |
|---|---|---|---|
| 2021 | 63.5% | 54.6% | 4,203 |
| 2022 | 64.0% | 55.7% | 3,897 |
| 2023 | 63.6% | 56.3% | 3,608 |
| 2024 | 63.1% | 56.5% | 3,195 |
| 2025 | 66.1% | 57.6% | 2,942 |
Common 2005 Mazda MX-5 MOT failures
Share of the 3,488 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 | 14.8% | 515 |
| Prescribed areas: prescribed area strength or continuity significantly reduced | 10.2% | 357 |
| Position lamp: not working | 10.0% | 348 |
| Catalyst emissions: Lambda reading after 2nd fast idle outside specified limits | 9.1% | 317 |
| Service brake performance: excessively binding | 8.0% | 278 |
Item names are DVSA’s own wording. 2023–2025 combined.
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Typical repair costs for common MOT failures
Typical UK garage prices for the job, not for an MX-5 in particular, and not a quote.
| Failure item | Typical job | Typical UK price | Usual range |
|---|---|---|---|
| Service brake performance: excessively binding | Brake caliper repair | £180 | £150–£220 |
From published UK repair-cost guides, checked September 2026. Only jobs with a published typical price are shown.
What to check on a 2005 Mazda MX-5 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.
- Lamps and electrics. Ask someone to watch while you work the brake lights, indicators, sidelights, dipped and main beam, and the number-plate lamps.
Common 2005 Mazda MX-5 MOT advisories
Advisories are points the tester noted that did not fail the car. Most common on 2005 MX-5s, as a share of all 9,745 first tests, 2023–2025.
| DVSA advisory item | Share of first tests | Tests |
|---|---|---|
| Brake discs: worn, pitted or scored, but not seriously weakened | 10.8% | 1,051 |
| Tyre condition: slightly damaged/cracking or perishing | 8.7% | 845 |
| Engine oil leaks: leak, but not excessive | 8.2% | 795 |
| Suspension arm: corroded but not seriously weakened | 7.9% | 768 |
| Rigid brake pipes: corroded, covered in grease or other material | 7.8% | 758 |
Questions about the 2005 Mazda MX-5 MOT
What is the MOT pass rate of a 2005 Mazda MX-5?
In 2025, 66.1% of MX-5s 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 MX-5 most often fail its MOT on?
Suspension (in 35.5% of failed first tests, 2023–2025), brakes (33.3%) and lamps and electrical equipment (31.1%). The single most common item was “Component mounting prescribed areas: prescribed area excessively corroded significantly reducing structural strength” (14.8%).
How often does a 2005 Mazda MX-5 fail its MOT?
In 2025, 33.9% of first tests on MX-5s first used in 2005 did not pass first time: 29.4% failed, and a further 4.5% had a fault fixed during the test (counted as a fail here). Across 2023–2025, 3,488 of 9,745 first tests did not pass first time.
What are the most common 2005 Mazda MX-5 MOT advisories?
“Brake discs: worn, pitted or scored, but not seriously weakened” (on 10.8% of first tests, 2023–2025), “Tyre condition: slightly damaged/cracking or perishing” (8.7%), “Engine oil leaks: leak, but not excessive” (8.2%), “Suspension arm: corroded but not seriously weakened” (7.9%) and “Rigid brake pipes: corroded, covered in grease or other material” (7.8%).
Is a 2005 Mazda MX-5 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 63.5% in 2021 to 66.1% 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 MX-5?
The numbers above cover every MX-5 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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