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 1,010 failed first attempts in 2025 that the age-and-mileage comparison can be computed on.
Standout: Ball joint dust cover (front) — 10.4% of this year's failed first attempts
Recorded on 105 of those tests. It tops the table on elevation — about 5.2× 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 |
|---|---|---|---|---|---|
|
Linkage pins and bushes (front)
Suspension > Anti-roll bars > Linkage pins and bushes
|
Front | 65 | ×29 | 6.4% | Likely |
|
Anti-roll bars — Linkage (front)
Suspension > Anti-roll bars > Linkage
|
Front | 42 | ×18 | 4.2% | Likely |
|
Electrical equipment — Horn
Lamps, reflectors and electrical equipment > Electrical equipment > Horn
|
Any | 71 | ×6.6 | 7.0% | Likely |
|
Ball joint dust cover (front)
Suspension > Suspension arms > Ball joint dust cover
|
Front | 105 | ×5.2 | 10.4% | Strong |
|
Wheel bearings (rear)
Suspension > Wheel bearings
|
Rear | 25 | ×3.8 | 2.5% | Possible |
|
SRS malfunction indicator lamp
Seat belts and supplementary restraint systems > SRS malfunction indicator lamp
|
Any | 50 | ×3.7 | 5.0% | Likely |
|
Position lamp (rear)
Lamps, reflectors and electrical equipment > Position lamps > Position lamp
|
Rear | 82 | ×3.4 | 8.1% | Likely |
|
Drive shafts — Joints (front)
Body, chassis, structure > Transmission > Drive shafts > Joints
|
Front | 124 | ×2.6 | 12.3% | Possible |
|
Registration plate lamp(s) (rear)
Lamps, reflectors and electrical equipment > Registration plate lamp(s)
|
Rear | 89 | ×2.6 | 8.8% | Possible |
|
Visibility — Wipers (front)
Visibility > Wipers
|
Front | 68 | ×2.2 | 6.7% | 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).