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 11,121 of 11,149 failed first attempts (99.7%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Seat belts — Condition (rear) — 3.4% of this year's failed first attempts
Recorded on 379 of those tests. It tops the table on elevation — about 5.1× 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.
| 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 | 379 | ×5.1 | 3.4% | Strong |
|
Track rod end (front)
Steering > Steering linkage components > Track rod end
|
Front | 2,284 | ×4.4 | 20.5% | Likely |
|
Rigid brake pipes (front)
Brakes > Rigid brake pipes
|
Front | 345 | ×4.4 | 3.1% | Likely |
|
Electronic stability control
Brakes > ABS / EBS / ESC > Electronic stability control
|
Any | 361 | ×4.0 | 3.2% | Likely |
|
Ball joint (front)
Suspension > Suspension arms > Ball joint
|
Front | 2,540 | ×3.4 | 22.8% | Likely |
|
Rigid brake pipes (rear)
Brakes > Rigid brake pipes
|
Rear | 444 | ×3.0 | 4.0% | Likely |
|
Exhaust system (rear)
Body, chassis, structure > Exhaust system
|
Rear | 445 | ×2.8 | 4.0% | Possible |
|
Linkage ball joints (front)
Suspension > Anti-roll bars > Linkage ball joints
|
Front | 689 | ×2.3 | 6.2% | Possible |
|
Pins and bushes (front)
Suspension > Suspension arms > Pins and bushes
|
Front | 1,146 | ×2.2 | 10.3% | Possible |
|
Ball joint dust cover (front)
Suspension > Suspension arms > Ball joint dust cover
|
Front | 399 | ×2.1 | 3.6% | 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).