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 4,626 of 4,628 failed first attempts that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Wheel bearings (rear) — 2.9% of this year's failed first attempts
Recorded on 136 of those tests. It tops the table on elevation — about 6.3× 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 |
|---|---|---|---|---|---|
|
Wheel bearings (rear)
Suspension > Wheel bearings
|
Rear | 136 | ×6.3 | 2.9% | Strong |
|
Service brake performance (rear)
Brakes > Brake performance > Service brake performance > Plate brake tester > Service brake performance
|
Rear | 106 | ×4.7 | 2.3% | Likely |
|
Service brake performance (rear)
Brakes > Brake performance > Service brake performance > Rbt > Service brake performance
|
Rear | 389 | ×3.3 | 8.4% | Likely |
|
Drive shafts — Joints (front)
Body, chassis, structure > Transmission > Drive shafts > Joints
|
Front | 610 | ×3.2 | 13.2% | Likely |
|
Linkage ball joints (front)
Suspension > Anti-roll bars > Linkage ball joints
|
Front | 347 | ×3.1 | 7.5% | Likely |
|
Malfunction indicator lamp
Noise, emissions and leaks > Exhaust emissions > Spark ignition > Malfunction indicator lamp
|
Any | 367 | ×3.0 | 7.9% | Likely |
|
Registration plate lamp(s) (rear)
Lamps, reflectors and electrical equipment > Registration plate lamp(s)
|
Rear | 321 | ×2.6 | 6.9% | Possible |
|
Wheel bearings (front)
Suspension > Wheel bearings
|
Front | 102 | ×2.5 | 2.2% | Possible |
|
Pins and bushes (front)
Suspension > Suspension arms > Pins and bushes
|
Front | 524 | ×2.5 | 11.3% | Possible |
|
Individual direction indicators (front)
Lamps, reflectors and electrical equipment > Direction indicators > Flashing type > Individual direction indicators
|
Front | 99 | ×2.3 | 2.1% | 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).