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 1,624 of 1,637 failed first attempts (99.2%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: SRS malfunction indicator lamp — 10.5% of this year's failed first attempts
Recorded on 170 of those tests. It tops the table on elevation — about 3.5× 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 |
|---|---|---|---|---|---|
|
SRS malfunction indicator lamp
Seat belts and supplementary restraint systems > SRS malfunction indicator lamp
|
Any | 170 | ×3.5 | 10.5% | Likely |
|
Service brake performance (front)
Brakes > Brake performance > Service brake performance > Rbt > Service brake performance
|
Front | 92 | ×2.6 | 5.7% | Possible |
|
Headlamp
Lamps, reflectors and electrical equipment > Headlamps > Headlamp
|
Any | 216 | ×2.2 | 13.3% | Possible |
|
Parking brake performance
Brakes > Brake performance > Parking brake performance > Rbt > Parking brake performance
|
Any | 36 | ×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).