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 2,264 of 2,272 failed first attempts (99.6%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Rigid brake pipes (front) — 5.3% of this year's failed first attempts
Recorded on 121 of those tests. It tops the table on elevation — about 5.9× 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 |
|---|---|---|---|---|---|
|
Prescribed areas (front)
Seat belts and supplementary restraint systems > Seat belts > Prescribed areas
|
Front | 98 | ×17 | 4.3% | Likely |
|
Integral vehicle structure condition
Body, chassis, structure > Integral vehicle structure > Integral vehicle structure condition
|
Any | 58 | ×11 | 2.6% | Likely |
|
System
Body, chassis, structure > Fuel system > System
|
Any | 49 | ×9.3 | 2.2% | Likely |
|
Rigid brake pipes (front)
Brakes > Rigid brake pipes
|
Front | 121 | ×5.9 | 5.3% | Strong |
|
Component mounting prescribed areas (rear)
Suspension > Component mounting prescribed areas
|
Rear | 159 | ×4.7 | 7.0% | Likely |
|
Rbt (sp)
Brakes > Brake performance > Parking brake efficiency (sp) > Rbt (sp)
|
Any | 671 | ×4.3 | 29.6% | Likely |
|
Rigid brake pipes (rear)
Brakes > Rigid brake pipes
|
Rear | 147 | ×4.2 | 6.5% | Likely |
|
Wheel bearings (front)
Suspension > Wheel bearings
|
Front | 114 | ×3.4 | 5.0% | Likely |
|
Service brake performance
Brakes > Brake performance > Service Brake Efficiency (sp) > Rbt (sp) > Service brake performance
|
Any | 66 | ×3.2 | 2.9% | Likely |
|
Parking brake performance (rear)
Brakes > Brake performance > Parking brake performance > Rbt > Parking brake performance
|
Rear | 93 | ×3.0 | 4.1% | 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).