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 10,357 of 10,365 failed first attempts (99.9%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Drive shafts — Joints (front) — 18.4% of this year's failed first attempts
Recorded on 1,901 of those tests. It tops the table on elevation — about 4.1× more often than on similar cars of the same age and mileage. On this year it is also the commonest failure, so it answers both questions at once. 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 |
|---|---|---|---|---|---|
|
Drive shafts — Joints (front)
Body, chassis, structure > Transmission > Drive shafts > Joints
|
Front | 1,901 | ×4.1 | 18.4% | Likely |
|
Wheel bearings (rear)
Suspension > Wheel bearings
|
Rear | 232 | ×3.0 | 2.2% | Likely |
|
Service brake performance (rear)
Brakes > Brake performance > Service brake performance > Rbt > Service brake performance
|
Rear | 831 | ×2.6 | 8.0% | Possible |
|
Ball joint (front)
Suspension > Anti-roll bars > Ball joint
|
Front | 234 | ×2.5 | 2.3% | Possible |
|
Position lamp (rear)
Lamps, reflectors and electrical equipment > Position lamps > Position lamp
|
Rear | 683 | ×2.5 | 6.6% | Possible |
|
Linkage ball joints (front)
Suspension > Anti-roll bars > Linkage ball joints
|
Front | 785 | ×2.5 | 7.6% | Possible |
|
Individual direction indicators (rear)
Lamps, reflectors and electrical equipment > Direction indicators > Flashing type > Individual direction indicators
|
Rear | 503 | ×2.4 | 4.9% | Possible |
|
Exhaust system (rear)
Body, chassis, structure > Exhaust system
|
Rear | 442 | ×2.4 | 4.3% | 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).