Mazda Reliability UK 2026

How reliable is a Mazda? Here’s a data-led reliability profile based on first-time MOT pass rates, model-level breakdown, top failure categories, and a buyer’s verdict.

By Bertram Sargla, Founder, MOT CheckupLast updated: 2026-05-16Data sourced from DVSA

Mazda reliability snapshot: first-time MOT pass rate 84.3% (+20.3 pp vs the UK average of 64%). Across 10 Mazda models, the typical dangerous-defect rate is 1.38% and the average retest rate is 11.3%. Mazda sits well above the UK average on first-time MOT performance. For a buyer focused on long-term reliability, it's a solid badge — though individual mileage and service history still matter more than brand.

Mazda first-time MOT pass rate

84.3%

Implied failure rate: 15.7% · UK average pass rate: 64%

vs UK average

+20.3 pp

Dangerous defects

1.38%

Retest rate

11.3%

How Mazda compares to the UK average

The UK national first-time MOT pass rate is 64%, with about 36% of cars failing on the first attempt.Mazda’s pass rate of 84.3% is 20.3 percentage points above that benchmark. That ’s a brand-average figure — individual Mazda models range from the high 60s to above 90%, so model and age matter more than the badge.

Mazda pass rate84.3%

UK average pass rate64%

Most reliable Mazda models

Ranked by first-time MOT pass rate across our reliability dataset. Restricted to models with meaningful sample size.

Mazda CX-30

2019–present · sample ≈12k

87.2%

Mazda MX-5

1998–present · sample ≈22k

85.5%

Mazda CX-60

2022–present · sample ≈5k

85.5%

Most problematic Mazda models

The Mazda models in our dataset with the lowest first-time MOT pass rates. A low pass rate doesn’t mean a bad car — older platforms naturally accumulate wear faster — but it does mean a pre-purchase MOT history check is essential.

Mazda 5

2005–2010 · sample ≈8k

76.8%

Mazda 6

2002–2022 · sample ≈32k

80.8%

Mazda 3

2003–present · sample ≈48k

83.2%

Run a free MOT check on a specific Mazda

Brand averages set expectations — a single car’s history is what actually decides whether it’s worth buying.

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Top MOT failure categories for Mazda

Aggregated across 10 Mazda models in our dataset, weighted by sample size.

Lamps, reflectors and electrical equipment

14.1%

Suspension

12.7%

Brakes

10.9%

Tyres

9.8%

Exhaust, fuel and emissions

7.2%

Mazda reliability — FAQ

Is Mazda a reliable car brand in the UK?

Mazda's first-time MOT pass rate of 84.3% is above the UK national average of 64%, putting it in the stronger half of brands for MOT reliability. We track 10 Mazda models in our dataset.

What is the most reliable Mazda model for MOT?

Based on first-time MOT pass rates, the most reliable Mazda models in our dataset are: Mazda CX-30 (87.2%), Mazda MX-5 (85.5%), Mazda CX-60 (85.5%). Newer EV variants tend to score highest because they avoid emissions-related failures entirely.

Which Mazda models fail their MOT most often?

In our dataset, the Mazda models with the lowest first-time MOT pass rates are: Mazda 5 (76.8%), Mazda 6 (80.8%), Mazda 3 (83.2%). These tend to be older or higher-mileage models; the same name in a newer year often performs noticeably better.

What are the most common MOT failures on a Mazda?

Aggregated across Mazda models, the most common MOT failure categories are: lamps, reflectors and electrical equipment (14.1%), suspension (12.7%), brakes (10.9%). These align with the national pattern; lighting, suspension, and tyre defects dominate UK MOT failures across most brands.

Check a Mazda’s MOT history

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Source: MOT Checkup analysis of DVSA MOT test data. Brand-average pass rate is sample-size weighted across 10 Mazda models in our dataset. Individual cars vary considerably — always check the specific registration’s MOT history before buying.