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 486 of 490 failed first attempts (99.2%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Hazard warning — Switch — 5.6% of this year's failed first attempts
Recorded on 27 of those tests. It tops the table on elevation — about 18× 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.
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 |
|---|---|---|---|---|---|
|
Hazard warning — Switch
Lamps, reflectors and electrical equipment > Hazard warning > Switch
|
Any | 27 | ×18 | 5.6% | Possible |
|
Steering rack (front)
Steering > Steering gear > Steering rack
|
Front | 34 | ×8.2 | 7.0% | Likely |
|
Linkage pins and bushes (front)
Suspension > Anti-roll bars > Linkage pins and bushes
|
Front | 26 | ×6.3 | 5.3% | Possible |
|
SRS malfunction indicator lamp
Seat belts and supplementary restraint systems > SRS malfunction indicator lamp
|
Any | 66 | ×4.6 | 13.6% | Likely |
|
Service brake imbalance (rear)
Brakes > Brake performance > Service Brake Efficiency (sp) > Rbt (sp) > Service brake imbalance
|
Rear | 42 | ×3.4 | 8.6% | Likely |
|
Coil spring (front)
Suspension > Springs > Coil springs > Coil spring
|
Front | 39 | ×2.7 | 8.0% | Possible |
|
Drive shafts — Joints (front)
Body, chassis, structure > Transmission > Drive shafts > Joints
|
Front | 70 | ×2.4 | 14.4% | Possible |
|
Service brake performance
Brakes > Brake performance > Service Brake Efficiency (sp) > Rbt (sp) > Service brake performance
|
Any | 20 | ×2.2 | 4.1% | Possible |
|
Service brake performance (rear)
Brakes > Brake performance > Service brake performance > Rbt > Service brake performance
|
Rear | 30 | ×2.2 | 6.2% | Possible |
|
Ball joint (front)
Suspension > Suspension arms > Ball joint
|
Front | 48 | ×2.1 | 9.9% | 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).