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 3,431 of 3,432 failed first attempts that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Suspension arm (rear) — 6.8% of this year's failed first attempts
Recorded on 232 of those tests. It tops the table on elevation — about 23× 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 (rear)
Suspension > Suspension arms > Suspension arm
|
Rear | 232 | ×23 | 6.8% | Strong |
|
Pins and bushes (front)
Suspension > Suspension arms > Pins and bushes
|
Front | 541 | ×3.3 | 15.8% | Likely |
|
Coil spring (rear)
Suspension > Springs > Coil springs > Coil spring
|
Rear | 484 | ×3.0 | 14.1% | Possible |
|
Electronic stability control
Brakes > ABS / EBS / ESC > Electronic stability control
|
Any | 71 | ×2.4 | 2.1% | Possible |
|
Anti-lock braking system
Brakes > ABS / EBS / ESC > Anti-lock braking system
|
Any | 101 | ×2.4 | 2.9% | Possible |
|
Malfunction indicator lamp
Noise, emissions and leaks > Exhaust emissions > Compression ignition > Malfunction indicator lamp
|
Any | 163 | ×2.2 | 4.8% | Possible |
|
Coil spring (front)
Suspension > Springs > Coil springs > Coil spring
|
Front | 539 | ×2.1 | 15.7% | Possible |
|
Side repeaters
Lamps, reflectors and electrical equipment > Direction indicators > Flashing type > Side repeaters
|
Any | 108 | ×2.0 | 3.1% | 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).