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 2,244 of 2,249 failed first attempts (99.8%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Suspension arm (front) — 4.5% of this year's failed first attempts
Recorded on 100 of those tests. It tops the table on elevation — about 13× 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 (front)
Suspension > Suspension arms > Suspension arm
|
Front | 100 | ×13 | 4.5% | Strong |
|
Decelerometer (sp)
Brakes > Brake performance > Parking brake efficiency (sp) > Decelerometer (sp)
|
Any | 102 | ×11 | 4.5% | Strong |
|
Rigid brake pipes (front)
Brakes > Rigid brake pipes
|
Front | 129 | ×3.3 | 5.7% | Likely |
|
Registration plate lamp(s) (rear)
Lamps, reflectors and electrical equipment > Registration plate lamp(s)
|
Rear | 229 | ×2.8 | 10.2% | Possible |
|
Ball joint dust cover (front)
Suspension > Suspension arms > Ball joint dust cover
|
Front | 157 | ×2.7 | 7.0% | Possible |
|
Electrical equipment — Horn
Lamps, reflectors and electrical equipment > Electrical equipment > Horn
|
Any | 79 | ×2.4 | 3.5% | Possible |
|
Linkage ball joints (front)
Suspension > Anti-roll bars > Linkage ball joints
|
Front | 168 | ×2.2 | 7.5% | Possible |
|
Rigid brake pipes (rear)
Brakes > Rigid brake pipes
|
Rear | 166 | ×2.1 | 7.4% | Possible |
|
Flexible brake hoses (front)
Brakes > Flexible brake hoses
|
Front | 70 | ×2.1 | 3.1% | Possible |
|
Track rod end (front)
Steering > Steering linkage components > Track rod end
|
Front | 208 | ×2.1 | 9.3% | 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).