Know Your MOT
26.5%fail rate

Mazda B Series common MOT failures and failure rate

What a Mazda B Series fails its MOT on most often, from real DVSA test data, and the part that resolves each item.

Based on 461 MOT tests in a recent DVSA sample.

What it fails on, and the fix

Lamps & electrical36.9% of failures
Suspension27.9% of failures
Brakes22.1% of failures
Visibility/wipers16.4% of failures
Other15.6% of failures
Usually bodywork or inspection, not a single bolt-on part.
Exhaust & emissions11.5% of failures

About 26.5% of MOT tests recorded on the Mazda B Series in this DVSA sample end in a failure. The pattern is consistent: the same handful of items account for most of them.

Its most common failure is lamps & electrical, which makes up 36.9% of the Mazda B Series's failures, followed by lamps & electrical, suspension, brakes, visibility/wipers. Each item below links to the part that resolves it. Confirm the exact fitment against your registration or VIN before buying, and have safety-critical work done by a competent mechanic.

Other models

Mazda 2 MOT failures20.3% failure rateMazda Mx-5 MOT failures19.8% failure rateMazda 3 MOT failures19.7% failure rateFord Fiesta MOT failures22.8% failure rate

Sources: DVSA MOT History API: MOT test results and defect data ยท DVSA MOT testing data for Great Britain