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 712 of 715 failed first attempts (99.6%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Seat belts — Condition (rear) — 4.6% of this year's failed first attempts
Recorded on 33 of those tests. It tops the table on elevation — about 5.5× 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 |
|---|---|---|---|---|---|
|
Seat belts — Condition (rear)
Seat belts and supplementary restraint systems > Seat belts > Condition
|
Rear | 33 | ×5.5 | 4.6% | Likely |
|
Electrical equipment — Horn
Lamps, reflectors and electrical equipment > Electrical equipment > Horn
|
Any | 32 | ×3.2 | 4.5% | Likely |
|
Track rod end (front)
Steering > Steering linkage components > Track rod end
|
Front | 74 | ×3.0 | 10.4% | Likely |
|
Individual direction indicators (front)
Lamps, reflectors and electrical equipment > Direction indicators > Flashing type > Individual direction indicators
|
Front | 25 | ×2.9 | 3.5% | Possible |
|
Coil spring (rear)
Suspension > Springs > Coil springs > Coil spring
|
Rear | 67 | ×2.8 | 9.4% | Possible |
|
Ball joint (front)
Suspension > Suspension arms > Ball joint
|
Front | 80 | ×2.6 | 11.2% | Possible |
|
Coil spring (front)
Suspension > Springs > Coil springs > Coil spring
|
Front | 95 | ×2.4 | 13.3% | Possible |
|
Wheel bearings (rear)
Suspension > Wheel bearings
|
Rear | 21 | ×2.4 | 2.9% | Possible |
|
Individual direction indicators (rear)
Lamps, reflectors and electrical equipment > Direction indicators > Flashing type > Individual direction indicators
|
Rear | 37 | ×2.2 | 5.2% | Possible |
|
Position lamp (rear)
Lamps, reflectors and electrical equipment > Position lamps > Position lamp
|
Rear | 47 | ×2.1 | 6.6% | 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).