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 3,681 of 3,691 failed first attempts (99.7%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Suspension arm (rear) — 9.4% of this year's failed first attempts
Recorded on 345 of those tests. It tops the table on elevation — about 14× 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 | 345 | ×14 | 9.4% | Strong |
|
Pins and bushes (rear)
Suspension > Suspension arms > Pins and bushes
|
Rear | 192 | ×4.8 | 5.2% | Likely |
|
Exhaust system (front)
Body, chassis, structure > Exhaust system
|
Front | 80 | ×2.2 | 2.2% | Possible |
| Diesel emissions test (pre-reg turbo rules before 01/07/2008) | Any | 156 | ×2.1 | 4.2% | Possible |
|
Wheel bearings (rear)
Suspension > Wheel bearings
|
Rear | 97 | ×2.1 | 2.6% | Possible |
|
Exhaust system (rear)
Body, chassis, structure > Exhaust system
|
Rear | 154 | ×2.1 | 4.2% | 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).