BMW Reliability UK 2026

How reliable is a BMW? 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

BMW reliability snapshot: first-time MOT pass rate 80.7% (+16.7 pp vs the UK average of 64%). Across 27 BMW models, the typical dangerous-defect rate is 1.68% and the average retest rate is 13.2%. BMW 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.

BMW first-time MOT pass rate

80.7%

Implied failure rate: 19.3% · UK average pass rate: 64%

vs UK average

+16.7 pp

Dangerous defects

1.68%

Retest rate

13.2%

How BMW 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.BMW’s pass rate of 80.7% is 16.7 percentage points above that benchmark. That ’s a brand-average figure — individual BMW models range from the high 60s to above 90%, so model and age matter more than the badge.

BMW pass rate80.7%

UK average pass rate64%

Most reliable BMW models

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

BMW iX

2021–present · sample ≈3k

91%

BMW i4

2021–present · sample ≈4k

90.8%

BMW iX3

2020–present · sample ≈3k

90.5%

Most problematic BMW models

The BMW 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.

BMW 7 Series

2002–present · sample ≈15k

76.5%

BMW 5 Series

1997–present · sample ≈72k

77.8%

BMW X5

2000–present · sample ≈35k

78.5%

Run a free MOT check on a specific BMW

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

Free instant MOT history check at /free-mot-check.

Top MOT failure categories for BMW

Aggregated across 27 BMW models in our dataset, weighted by sample size.

Lamps, reflectors and electrical equipment

15.3%

Suspension

14.4%

Brakes

12.2%

Tyres

10%

Exhaust, fuel and emissions

8.1%

BMW reliability — FAQ

Is BMW a reliable car brand in the UK?

BMW's first-time MOT pass rate of 80.7% is above the UK national average of 64%, putting it in the stronger half of brands for MOT reliability. We track 27 BMW models in our dataset.

What is the most reliable BMW model for MOT?

Based on first-time MOT pass rates, the most reliable BMW models in our dataset are: BMW iX (91%), BMW i4 (90.8%), BMW iX3 (90.5%). Newer EV variants tend to score highest because they avoid emissions-related failures entirely.

Which BMW models fail their MOT most often?

In our dataset, the BMW models with the lowest first-time MOT pass rates are: BMW 7 Series (76.5%), BMW 5 Series (77.8%), BMW X5 (78.5%). 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 BMW?

Aggregated across BMW models, the most common MOT failure categories are: lamps, reflectors and electrical equipment (15.3%), suspension (14.4%), brakes (12.2%). These align with the national pattern; lighting, suspension, and tyre defects dominate UK MOT failures across most brands.

Check a BMW’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 27 BMW models in our dataset. Individual cars vary considerably — always check the specific registration’s MOT history before buying.