These MOT failure patterns show up more often on this registration year than on similar cars of the same class, age, and mileage.
Shares below are measured across the 1,521 of 1,523 failed first attempts (99.9%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Parking brake performance (rear) — 5.5% of this year's failed first attempts
Recorded on 84 of those tests. It tops the table on elevation — about 6.1× more often than on similar cars of the same age and mileage. That is what makes it unusual for its class, which is a different question from what is most likely to fail; the buying checklist ranks by that. The full ranked list is in the table below.
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 |
|---|---|---|---|---|---|
|
Parking brake performance (rear)
Brakes > Brake performance > Parking brake performance > Rbt > Parking brake performance
|
Rear | 84 | ×6.1 | 5.5% | Likely |
|
Rbt (sp)
Brakes > Brake performance > Parking brake efficiency (sp) > Rbt (sp)
|
Any | 350 | ×4.9 | 23.0% | Likely |
|
Ball joint dust cover (front)
Suspension > Suspension arms > Ball joint dust cover
|
Front | 102 | ×4.0 | 6.7% | Likely |
|
Track rod end (front)
Steering > Steering linkage components > Track rod end
|
Front | 261 | ×3.9 | 17.2% | Likely |
|
Service brake performance
Brakes > Brake performance > Service Brake Efficiency (sp) > Rbt (sp) > Service brake performance
|
Any | 37 | ×2.7 | 2.4% | Possible |
| Diesel emissions test (compression-ignition rules for vehicles from 01/07/2008) | Any | 37 | ×2.6 | 2.4% | Possible |
|
Stop lamp (rear)
Lamps, reflectors and electrical equipment > Stop lamp
|
Rear | 147 | ×2.2 | 9.7% | 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).