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 of 1,178 failed first attempts (99.1%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Ball joint (front) — 2.6% of this year's failed first attempts
Recorded on 30 of those tests. It tops the table on elevation — about 4.4× 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 |
|---|---|---|---|---|---|
|
Ball joint (front)
Suspension > Anti-roll bars > Ball joint
|
Front | 30 | ×4.4 | 2.6% | Likely |
|
Coil spring (rear)
Suspension > Springs > Coil springs > Coil spring
|
Rear | 197 | ×3.8 | 16.9% | Likely |
|
Linkage ball joints (front)
Suspension > Anti-roll bars > Linkage ball joints
|
Front | 87 | ×3.7 | 7.5% | Likely |
|
Rear fog lamp
Lamps, reflectors and electrical equipment > Front and rear fog lamps > Rear fog lamp > Rear fog lamp
|
Any | 44 | ×3.6 | 3.8% | Likely |
|
Drive shafts — Joints (front)
Body, chassis, structure > Transmission > Drive shafts > Joints
|
Front | 142 | ×2.7 | 12.2% | Possible |
|
Track rod end
Steering > Steering linkage components > Track rod end
|
Any | 49 | ×2.3 | 4.2% | Possible |
|
Individual direction indicators (rear)
Lamps, reflectors and electrical equipment > Direction indicators > Flashing type > Individual direction indicators
|
Rear | 32 | ×2.1 | 2.7% | Possible |
|
Electrical equipment — Horn
Lamps, reflectors and electrical equipment > Electrical equipment > Horn
|
Any | 26 | ×2.1 | 2.2% | 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).