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 11,850 of 11,885 failed first attempts (99.7%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Rigid brake pipes (front) — 4.5% of this year's failed first attempts
Recorded on 536 of those tests. It tops the table on elevation — about 8.3× 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 |
|---|---|---|---|---|---|
|
Rigid brake pipes (front)
Brakes > Rigid brake pipes
|
Front | 536 | ×8.3 | 4.5% | Strong |
|
Rigid brake pipes (rear)
Brakes > Rigid brake pipes
|
Rear | 627 | ×6.4 | 5.3% | Strong |
|
Service brake performance (rear)
Brakes > Brake performance > Service brake performance > Plate brake tester > Service brake performance
|
Rear | 281 | ×5.5 | 2.4% | Strong |
|
Drive shafts — Joints (front)
Body, chassis, structure > Transmission > Drive shafts > Joints
|
Front | 2,373 | ×5.3 | 20.0% | Strong |
|
Service brake performance (rear)
Brakes > Brake performance > Service brake performance > Rbt > Service brake performance
|
Rear | 1,073 | ×4.0 | 9.1% | Likely |
|
Service brake imbalance (rear)
Brakes > Brake performance > Service Brake Efficiency (sp) > Rbt (sp) > Service brake imbalance
|
Rear | 251 | ×3.2 | 2.1% | Likely |
|
Ball joint (front)
Suspension > Suspension arms > Ball joint
|
Front | 2,311 | ×3.2 | 19.5% | Likely |
|
Coil spring (front)
Suspension > Springs > Coil springs > Coil spring
|
Front | 2,326 | ×3.1 | 19.6% | Likely |
|
Parking brake control — Lever
Brakes > Parking brake control > Lever
|
Any | 265 | ×3.1 | 2.2% | Likely |
|
Parking brake performance (rear)
Brakes > Brake performance > Parking brake performance > Rbt > Parking brake performance
|
Rear | 282 | ×3.0 | 2.4% | 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).