Mazda 3 BP (2019–2025): what fails at MOT
Across 7,364 MOT tests of the Mazda 3 BP (2019–2025) in the DfT's 2023 MOT data (initial tests, retests excluded), 9.8% failed — about 1 in 10. The parts that fail most are tyres (4.6% of tests), lights and electrics (2.1%), wipers, windscreen and mirrors (1.9%) and brakes (1.0%).
Allowing for age and mileage, the Mazda 3 BP has 14% fewer MOT failures than the average car of the same age and mileage. That puts it first of the two Mazda 3 generations on MOT results.
The MOT checks safety and emissions items — brakes, suspension, steering, lights, tyres, body structure and exhaust emissions. It does not test engines, gearboxes or most electronics, so those faults only show up here when they cause an emissions failure or a leak.
Mazda 3 BP (2019–2025)
MOT: 9.8% of 7,364 initial tests failed — 14% fewer failures than the average car of the same age and mileage
| # | Part / area | Share of MOT tests failing |
|---|---|---|
| 1 | tyres | 4.6% |
| 2 | lights and electrics | 2.1% |
| 3 | wipers, windscreen and mirrors | 1.9% |
| 4 | brakes | 1.0% |
Questions
What fails most on a Mazda 3 BP at MOT?
The most common MOT failure is tyres: 4.6% of Mazda 3 BP (2019–2025) MOT tests in the 2023 data failed on tyres. Next come lights and electrics (2.1%) and wipers, windscreen and mirrors (1.9%).
How often does a Mazda 3 BP fail its MOT?
9.8% of Mazda 3 BP (2019–2025) MOT tests in the 2023 data failed (about 1 in 10), counting initial tests only, across 7,364 tests.
Is the Mazda 3 BP (2019–2025) reliable?
On MOT results, the Mazda 3 BP has 14% fewer MOT failures than the average car of the same age and mileage. MOT data covers safety and emissions items, not engines or gearboxes.
Does this Mazda 3 BP data cover engine and gearbox problems?
No. The MOT checks safety and emissions items — brakes, suspension, steering, lights, tyres, body structure and exhaust emissions. It does not test engines, gearboxes or most electronics, so those faults only show up here when they cause an emissions failure or a leak.