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 1,167 failed first attempts in 2025 that the age-and-mileage comparison can be computed on.
Standout: Anti-roll bars — Linkage (rear) — 2.9% of this year's failed first attempts
Recorded on 34 of those tests. It tops the table on elevation — about 14× 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 |
|---|---|---|---|---|---|
|
Anti-roll bars — Linkage (rear)
Suspension > Anti-roll bars > Linkage
|
Rear | 34 | ×14 | 2.9% | Likely |
|
Integral vehicle structure condition
Body, chassis, structure > Integral vehicle structure > Integral vehicle structure condition
|
Any | 24 | ×4.2 | 2.1% | Possible |
| Diesel emissions test (pre-reg turbo rules before 01/07/2008) | Any | 67 | ×3.2 | 5.7% | Likely |
|
Seat belts — Condition (rear)
Seat belts and supplementary restraint systems > Seat belts > Condition
|
Rear | 35 | ×3.0 | 3.0% | Possible |
|
Component mounting prescribed areas (rear)
Suspension > Component mounting prescribed areas
|
Rear | 137 | ×2.8 | 11.7% | Possible |
|
Coil spring (rear)
Suspension > Springs > Coil springs > Coil spring
|
Rear | 99 | ×2.4 | 8.5% | Possible |
|
Chassis condition (rear)
Body, chassis, structure > Chassis > Chassis condition
|
Rear | 32 | ×2.4 | 2.7% | Possible |
|
Parking brake control — Lever
Brakes > Parking brake control > Lever
|
Any | 25 | ×2.4 | 2.1% | Possible |
|
Shock absorbers (front)
Suspension > Shock absorbers
|
Front | 65 | ×2.3 | 5.6% | Possible |
|
Exhaust system
Body, chassis, structure > Exhaust system
|
Any | 77 | ×2.3 | 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).