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 1,324 of 1,326 failed first attempts (99.8%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Component mounting prescribed areas (front) — 10.0% of this year's failed first attempts
Recorded on 132 of those tests. It tops the table on elevation — about 9.6× 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 |
|---|---|---|---|---|---|
|
Outline marker lamp (front)
Lamps, reflectors and electrical equipment > Outline marker lamps > Outline marker lamp
|
Front | 42 | ×29 | 3.2% | Likely |
|
Outline marker lamp (rear)
Lamps, reflectors and electrical equipment > Outline marker lamps > Outline marker lamp
|
Rear | 74 | ×27 | 5.6% | Likely |
|
Integral vehicle structure condition (front)
Body, chassis, structure > Integral vehicle structure > Integral vehicle structure condition
|
Front | 81 | ×13 | 6.1% | Likely |
|
Chassis condition (front)
Body, chassis, structure > Chassis > Chassis condition
|
Front | 85 | ×11 | 6.4% | Likely |
|
Component mounting prescribed areas (front)
Suspension > Component mounting prescribed areas
|
Front | 132 | ×9.6 | 10.0% | Strong |
|
Sub-frame mounting prescribed areas (front)
Suspension > Sub-frames > Sub-frame mounting prescribed areas
|
Front | 34 | ×8.9 | 2.6% | Likely |
|
Prescribed areas (front)
Seat belts and supplementary restraint systems > Seat belts > Prescribed areas
|
Front | 42 | ×7.4 | 3.2% | Likely |
|
Service brake performance
Brakes > Brake performance > Service Brake Efficiency (sp) > Rbt (sp) > Service brake performance
|
Any | 72 | ×6.3 | 5.4% | Likely |
|
Wheel bearings (front)
Suspension > Wheel bearings
|
Front | 61 | ×4.6 | 4.6% | Likely |
|
Rear fog lamp (rear)
Lamps, reflectors and electrical equipment > Front and rear fog lamps > Rear fog lamp > Rear fog lamp
|
Rear | 79 | ×3.5 | 6.0% | Likely |
Only patterns that clear minimum sample and elevation thresholds are shown (at least 20 failures and about 2.0× more often than similar cars).