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 1,346 of 1,347 failed first attempts (99.9%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Position lamp (rear) — 7.9% of this year's failed first attempts
Recorded on 106 of those tests. It tops the table on elevation — about 5.6× 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.
| Fault pattern | Location | Failures | vs similar cars | Share of fails | Confidence |
|---|---|---|---|---|---|
|
Ball joint (front)
Steering > Steering linkage components > Ball joint
|
Front | 28 | ×20 | 2.1% | Possible |
|
Seat belts — Condition (front)
Seat belts and supplementary restraint systems > Seat belts > Condition
|
Front | 46 | ×13 | 3.4% | Likely |
|
Reversing lamps
Lamps, reflectors and electrical equipment > Reversing lamps > Reversing lamps
|
Any | 74 | ×12 | 5.5% | Likely |
|
Rigid brake pipes (front)
Brakes > Rigid brake pipes
|
Front | 79 | ×9.1 | 5.9% | Likely |
|
Position lamp (rear)
Lamps, reflectors and electrical equipment > Position lamps > Position lamp
|
Rear | 106 | ×5.6 | 7.9% | Strong |
|
Shock absorbers (rear)
Suspension > Shock absorbers
|
Rear | 149 | ×5.3 | 11.1% | Strong |
|
Rigid brake pipes (rear)
Brakes > Rigid brake pipes
|
Rear | 55 | ×4.5 | 4.1% | Likely |
|
Position lamp (front)
Lamps, reflectors and electrical equipment > Position lamps > Position lamp
|
Front | 188 | ×2.6 | 14.0% | Possible |
|
Registration plate lamp(s)
Lamps, reflectors and electrical equipment > Registration plate lamp(s)
|
Any | 78 | ×2.3 | 5.8% | Possible |
|
Stop lamp (rear)
Lamps, reflectors and electrical equipment > Stop lamp
|
Rear | 114 | ×2.2 | 8.5% | 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).