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 3,538 of 3,540 failed first attempts (99.9%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Linkage pins and bushes (front) — 4.6% of this year's failed first attempts
Recorded on 161 of those tests. It tops the table on elevation — about 22× 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 |
|---|---|---|---|---|---|
|
Linkage pins and bushes (front)
Suspension > Anti-roll bars > Linkage pins and bushes
|
Front | 161 | ×22 | 4.6% | Strong |
|
Hazard warning — Switch
Lamps, reflectors and electrical equipment > Hazard warning > Switch
|
Any | 96 | ×18 | 2.7% | Likely |
|
Wheel bearings (front)
Suspension > Wheel bearings
|
Front | 124 | ×5.3 | 3.5% | Strong |
|
Rigid brake pipes (rear)
Brakes > Rigid brake pipes
|
Rear | 119 | ×3.8 | 3.4% | Likely |
|
Service brake performance (rear)
Brakes > Brake performance > Service brake performance > Rbt > Service brake performance
|
Rear | 296 | ×3.5 | 8.4% | Likely |
|
Electronic stability control
Brakes > ABS / EBS / ESC > Electronic stability control
|
Any | 84 | ×3.0 | 2.4% | Likely |
|
Exhaust system (rear)
Body, chassis, structure > Exhaust system
|
Rear | 83 | ×2.5 | 2.3% | Possible |
|
Catalyst emissions
Noise, emissions and leaks > Exhaust emissions > Spark ignition > Catalyst emissions
|
Any | 213 | ×2.2 | 6.0% | Possible |
|
Malfunction indicator lamp
Noise, emissions and leaks > Exhaust emissions > Spark ignition > Malfunction indicator lamp
|
Any | 197 | ×2.1 | 5.6% | 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).