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 935 failed first attempts in 2025 that the age-and-mileage comparison can be computed on.
Standout: SRS malfunction indicator lamp — 10.9% of this year's failed first attempts
Recorded on 102 of those tests. It tops the table on elevation — about 8.6× 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 |
|---|---|---|---|---|---|
|
SRS malfunction indicator lamp
Seat belts and supplementary restraint systems > SRS malfunction indicator lamp
|
Any | 102 | ×8.6 | 10.9% | Strong |
|
Rigid brake pipes (rear)
Brakes > Rigid brake pipes
|
Rear | 61 | ×7.1 | 6.5% | Likely |
|
Registration plates (front)
Identification of the vehicle > Registration plates
|
Front | 24 | ×4.5 | 2.6% | Possible |
|
Registration plates (rear)
Identification of the vehicle > Registration plates
|
Rear | 23 | ×4.2 | 2.5% | Possible |
|
Ball joint dust cover (front)
Suspension > Suspension arms > Ball joint dust cover
|
Front | 66 | ×3.9 | 7.1% | Likely |
Only patterns that clear minimum sample and elevation thresholds are shown (at least 20 failures and about 2.0× more often than similar cars).