Ford Focus vs Mercedes-Benz A-Class
On MOT-testable defects, the Mercedes-Benz A-Class (fail rate 14.9%) performed better than the Ford Focus (20.5%) across comparable years. The biggest divergence was lighting & signalling, where the Focus recorded failures more often.
20.5%
Focus fail rate
14.9%
A-Class fail rate
5.64pp
Difference
Side by side
| Metric | Ford Focus | Mercedes-Benz A-Class |
|---|---|---|
| MOT tests analysed | 5,876,438 | 1,863,609 |
| Pass rate | 79.5% | 85.1% |
| Fail rate | 20.5% | 14.9% |
Where they differ
| Category | Focus | A-Class |
|---|---|---|
| Lighting & signalling | 12.5% | 5.1% |
| Suspension | 9.1% | 3.9% |
| Brakes | 4.5% | 3.6% |
| Visibility | 3.6% | 3.3% |
| Tyres | 6.3% | 5.9% |
Methodology & source. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.