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 4,236 of 4,247 failed first attempts (99.7%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Linkage ball joints (rear) — 5.0% of this year's failed first attempts
Recorded on 212 of those tests. It tops the table on elevation — about 15× 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 |
|---|---|---|---|---|---|
|
Linkage ball joints (rear)
Suspension > Anti-roll bars > Linkage ball joints
|
Rear | 212 | ×15 | 5.0% | Strong |
|
Steering rack
Steering > Steering play > Steering rack
|
Any | 88 | ×14 | 2.1% | Likely |
|
Suspension arm (rear)
Suspension > Suspension arms > Suspension arm
|
Rear | 320 | ×8.7 | 7.6% | Strong |
|
Parking brake control — Lever
Brakes > Parking brake control > Lever
|
Any | 128 | ×3.6 | 3.0% | Likely |
|
Stop lamp (rear)
Lamps, reflectors and electrical equipment > Stop lamp
|
Rear | 482 | ×2.3 | 11.4% | Possible |
|
Parking brake performance
Brakes > Brake performance > Parking brake performance > Rbt > Parking brake performance
|
Any | 99 | ×2.2 | 2.3% | Possible |
|
Ball joint dust cover (front)
Suspension > Suspension arms > Ball joint dust cover
|
Front | 192 | ×2.1 | 4.5% | 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).