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 1,322 of 1,328 failed first attempts (99.5%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Prop shaft — 3.6% of this year's failed first attempts
Recorded on 48 of those tests. It tops the table on elevation — about 44× 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.
No patterns met the strongest callout thresholds on this page; showing the highest-lift rows that still cleared the display floors.
| Fault pattern | Location | Failures | vs similar cars | Share of fails | Confidence |
|---|---|---|---|---|---|
|
Prop shaft
Body, chassis, structure > Transmission > Prop shafts > Prop shaft
|
Any | 48 | ×44 | 3.6% | Likely |
|
Electronic parking brake
Brakes > Parking brake control > Electronic parking brake
|
Any | 41 | ×27 | 3.1% | Likely |
|
Decelerometer (sp)
Brakes > Brake performance > Parking brake efficiency (sp) > Decelerometer (sp)
|
Any | 43 | ×6.7 | 3.3% | Likely |
|
Suspension arm (rear)
Suspension > Suspension arms > Suspension arm
|
Rear | 68 | ×6.4 | 5.1% | Likely |
|
Brake performance not tested
Brakes > Brake performance > Brake performance not tested
|
Any | 40 | ×3.7 | 3.0% | Likely |
|
Wheel bearings (front)
Suspension > Wheel bearings
|
Front | 68 | ×3.2 | 5.1% | Likely |
|
Pins and bushes (rear)
Suspension > Suspension arms > Pins and bushes
|
Rear | 49 | ×3.2 | 3.7% | Likely |
|
Flexible brake hoses (front)
Brakes > Flexible brake hoses
|
Front | 34 | ×3.0 | 2.6% | Likely |
|
Rigid brake pipes (rear)
Brakes > Rigid brake pipes
|
Rear | 103 | ×2.8 | 7.8% | Possible |
|
Chassis condition (rear)
Body, chassis, structure > Chassis > Chassis condition
|
Rear | 35 | ×2.2 | 2.6% | 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).