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 861 of 862 failed first attempts (99.9%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Decelerometer (sp) — 9.2% of this year's failed first attempts
Recorded on 79 of those tests. It tops the table on elevation — about 19× 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 |
|---|---|---|---|---|---|
|
Decelerometer (sp)
Brakes > Brake performance > Parking brake efficiency (sp) > Decelerometer (sp)
|
Any | 79 | ×19 | 9.2% | Likely |
|
Sub-frame mounting prescribed areas (rear)
Suspension > Sub-frames > Sub-frame mounting prescribed areas
|
Rear | 21 | ×7.6 | 2.4% | Possible |
|
Pins and bushes (rear)
Suspension > Suspension arms > Pins and bushes
|
Rear | 60 | ×4.9 | 7.0% | Likely |
|
Prescribed areas (rear)
Seat belts and supplementary restraint systems > Seat belts > Prescribed areas
|
Rear | 22 | ×3.6 | 2.6% | Possible |
|
Integral vehicle structure condition (rear)
Body, chassis, structure > Integral vehicle structure > Integral vehicle structure condition
|
Rear | 33 | ×3.4 | 3.8% | Likely |
|
Brake performance not tested
Brakes > Brake performance > Brake performance not tested
|
Any | 23 | ×2.8 | 2.7% | Possible |
|
Rigid brake pipes (front)
Brakes > Rigid brake pipes
|
Front | 41 | ×2.7 | 4.8% | Possible |
|
Chassis condition (rear)
Body, chassis, structure > Chassis > Chassis condition
|
Rear | 35 | ×2.6 | 4.1% | Possible |
|
Rigid brake pipes (rear)
Brakes > Rigid brake pipes
|
Rear | 69 | ×2.3 | 8.0% | Possible |
|
Seat belts — Condition (rear)
Seat belts and supplementary restraint systems > Seat belts > Condition
|
Rear | 20 | ×2.1 | 2.3% | 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).