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 1,378 of 1,380 failed first attempts (99.9%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Component mounting prescribed areas (front) — 10.7% of this year's failed first attempts
Recorded on 148 of those tests. It tops the table on elevation — about 21× more often than on similar cars of the same age and mileage. On this year it is also the commonest failure, so it answers both questions at once. The full ranked list is in the table below.
| Fault pattern | Location | Failures | vs similar cars | Share of fails | Confidence |
|---|---|---|---|---|---|
|
Sub-frame mounting prescribed areas (front)
Suspension > Sub-frames > Sub-frame mounting prescribed areas
|
Front | 79 | ×23 | 5.7% | Likely |
|
Component mounting prescribed areas (front)
Suspension > Component mounting prescribed areas
|
Front | 148 | ×21 | 10.7% | Strong |
|
Prescribed areas (front)
Seat belts and supplementary restraint systems > Seat belts > Prescribed areas
|
Front | 90 | ×16 | 6.5% | Likely |
|
Chassis condition (front)
Body, chassis, structure > Chassis > Chassis condition
|
Front | 70 | ×15 | 5.1% | Likely |
|
Integral vehicle structure condition (front)
Body, chassis, structure > Integral vehicle structure > Integral vehicle structure condition
|
Front | 45 | ×12 | 3.3% | Likely |
|
Sub-frame mounting prescribed areas (rear)
Suspension > Sub-frames > Sub-frame mounting prescribed areas
|
Rear | 36 | ×12 | 2.6% | Likely |
|
Component mounting prescribed areas (rear)
Suspension > Component mounting prescribed areas
|
Rear | 410 | ×10 | 29.8% | Strong |
|
Integral vehicle structure condition (rear)
Body, chassis, structure > Integral vehicle structure > Integral vehicle structure condition
|
Rear | 73 | ×10 | 5.3% | Likely |
|
Swivel pins and bushes (rear)
Suspension > Axles > Swivel pins and bushes
|
Rear | 37 | ×10 | 2.7% | Likely |
|
Chassis condition (rear)
Body, chassis, structure > Chassis > Chassis condition
|
Rear | 95 | ×8.7 | 6.9% | Likely |
Only patterns that clear minimum sample and elevation thresholds are shown (at least 20 failures and about 2.0× more often than similar cars).