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 4,657 of 4,658 failed first attempts that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Pins and bushes (front) — 25.3% of this year's failed first attempts
Recorded on 1,178 of those tests. It tops the table on elevation — about 6.5× more often than on similar cars of the same age and mileage. On this year it is also the commonest failure, so it answers both questions at once. The full ranked list is in the table below.
| Fault pattern | Location | Failures | vs similar cars | Share of fails | Confidence |
|---|---|---|---|---|---|
|
Pins and bushes (front)
Suspension > Suspension arms > Pins and bushes
|
Front | 1,178 | ×6.5 | 25.3% | Strong |
|
Shock absorbers (front)
Suspension > Shock absorbers
|
Front | 264 | ×3.2 | 5.7% | Likely |
|
Catalyst emissions
Noise, emissions and leaks > Exhaust emissions > Spark ignition > Catalyst emissions
|
Any | 273 | ×2.8 | 5.9% | Possible |
|
Exhaust system
Body, chassis, structure > Exhaust system
|
Any | 120 | ×2.6 | 2.6% | Possible |
|
Service brake performance (rear)
Brakes > Brake performance > Service brake performance > Rbt > Service brake performance
|
Rear | 168 | ×2.2 | 3.6% | Possible |
|
Linkage ball joint dust cover (front)
Suspension > Anti-roll bars > Linkage ball joint dust cover
|
Front | 144 | ×2.1 | 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).