MOT Failure Rates by Make: Which Brands Are Most Reliable in 2026?

We analysed MOT pass rate data across every major car manufacturer in the UK to find out which brands build the most reliable vehicles. The results show a clear pattern: Japanese manufacturers dominate the top spots, while some European brands consistently underperform.

These figures represent the average MOT pass rate across all models and year ranges for each brand. While individual models within a brand can vary significantly, the overall brand average gives a useful indication of build quality and long-term reliability.

Key Takeaways

• Japanese reliability holds up: Honda, Toyota, Lexus, Mazda, and Suzuki all appear in the top 10. These brands are known for engineering durability and relatively simple, reliable mechanical components.
• Premium doesn't always mean reliable: While Porsche tops the list, other premium brands like BMW and Mercedes sit mid-table. Complexity and expensive parts contribute to higher failure rates.
• French brands trail the field: Renault, Citroen, and Peugeot consistently have lower pass rates, particularly on older vehicles where electrical and suspension issues are common.
• Volume sellers in the middle: Ford and Volkswagen sit around the UK average, with pass rates that vary considerably by model and age.
• Age matters more than brand: Even the most reliable brands see pass rates drop significantly after 10 years. A well-maintained Renault will outperform a neglected Toyota.

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