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 1,546 of 1,548 failed first attempts (99.9%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Suspension arm (rear) — 4.7% of this year's failed first attempts
Recorded on 72 of those tests. It tops the table on elevation — about 11× 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 |
|---|---|---|---|---|---|
|
Suspension arm (rear)
Suspension > Suspension arms > Suspension arm
|
Rear | 72 | ×11 | 4.7% | Likely |
|
Suspension arm (front)
Suspension > Suspension arms > Suspension arm
|
Front | 45 | ×8.3 | 2.9% | Likely |
|
Side repeaters
Lamps, reflectors and electrical equipment > Direction indicators > Flashing type > Side repeaters
|
Any | 94 | ×3.8 | 6.1% | Likely |
|
Position lamp (rear)
Lamps, reflectors and electrical equipment > Position lamps > Position lamp
|
Rear | 133 | ×2.7 | 8.6% | Possible |
|
Wheel bearings (front)
Suspension > Wheel bearings
|
Front | 67 | ×2.7 | 4.3% | Possible |
|
Brake performance not tested
Brakes > Brake performance > Brake performance not tested
|
Any | 34 | ×2.4 | 2.2% | Possible |
|
Rigid brake pipes (rear)
Brakes > Rigid brake pipes
|
Rear | 114 | ×2.1 | 7.4% | 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).