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 15,347 of 15,367 failed first attempts (99.9%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Suspension arm (rear) — 4.6% of this year's failed first attempts
Recorded on 713 of those tests. It tops the table on elevation — about 7.2× 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 |
|---|---|---|---|---|---|
|
Suspension arm (rear)
Suspension > Suspension arms > Suspension arm
|
Rear | 713 | ×7.2 | 4.6% | Strong |
|
SRS malfunction indicator lamp
Seat belts and supplementary restraint systems > SRS malfunction indicator lamp
|
Any | 1,287 | ×5.8 | 8.4% | Strong |
|
Track rod end (front)
Steering > Steering linkage components > Track rod end
|
Front | 3,681 | ×5.1 | 24.0% | Strong |
|
Drive shafts — Joints (front)
Body, chassis, structure > Transmission > Drive shafts > Joints
|
Front | 3,122 | ×4.0 | 20.3% | Likely |
|
Linkage ball joints (front)
Suspension > Anti-roll bars > Linkage ball joints
|
Front | 1,463 | ×2.8 | 9.5% | Possible |
|
Ball joint (front)
Suspension > Anti-roll bars > Ball joint
|
Front | 411 | ×2.7 | 2.7% | Possible |
|
Parking brake performance (rear)
Brakes > Brake performance > Parking brake performance > Rbt > Parking brake performance
|
Rear | 479 | ×2.7 | 3.1% | Possible |
|
Ball joint (front)
Suspension > Suspension arms > Ball joint
|
Front | 2,843 | ×2.7 | 18.5% | Possible |
|
Ball joint dust cover (front)
Suspension > Suspension arms > Ball joint dust cover
|
Front | 624 | ×2.5 | 4.1% | Possible |
|
Position lamp (rear)
Lamps, reflectors and electrical equipment > Position lamps > Position lamp
|
Rear | 806 | ×2.3 | 5.3% | 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).