These MOT failure patterns show up more often on this registration year than on similar cars of the same class, age, and mileage.
Based on 298 failed first-attempt tests in 2025.
Steering rack
This failure pattern appears about 8.9× more often than on similar cars — recorded on 27 failed first-attempt tests; 9.1% of failed tests for this model year.
Service brake imbalance (rear)
This failure pattern appears about 4.1× more often than on similar cars — recorded on 43 failed first-attempt tests; 14.4% of failed tests for this model year.
No patterns met the strongest callout thresholds on this page; showing the highest-lift rows that still cleared the display floors.
| # | Fault pattern | Location | Failures | vs similar cars | Share of fails | Confidence |
|---|---|---|---|---|---|---|
| 1 |
Steering rack
Steering > Steering gear > Steering rack
|
Any | 27 | ×8.9 | 9.1% | Possible |
| 2 |
Service brake imbalance (rear)
Brakes > Brake performance > Service Brake Efficiency (sp) > Rbt (sp) > Service brake imbalance
|
Rear | 43 | ×4.1 | 14.4% | Likely |
| 3 |
Service brake performance
Brakes > Brake performance > Service Brake Efficiency (sp) > Rbt (sp) > Service brake performance
|
Any | 34 | ×3.9 | 11.4% | Likely |
| 4 |
Catalyst emissions
Noise, emissions and leaks > Exhaust emissions > Spark ignition > Catalyst emissions
|
Any | 79 | ×3.4 | 26.5% | Likely |
| 5 |
Electrical equipment — Horn
Lamps, reflectors and electrical equipment > Electrical equipment > Horn
|
Any | 20 | ×2.9 | 6.7% | Possible |
| 6 |
Service brake performance (rear)
Brakes > Brake performance > Service brake performance > Rbt > Service brake performance
|
Rear | 25 | ×2.5 | 8.4% | Possible |
Only patterns that clear minimum sample and elevation thresholds are shown (at least 20 failures and about 2.0× more often than similar cars).