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 1,707 of 1,708 failed first attempts (99.9%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Linkage ball joints (rear) — 6.1% of this year's failed first attempts
Recorded on 104 of those tests. It tops the table on elevation — about 17× 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 |
|---|---|---|---|---|---|
|
Linkage ball joints (rear)
Suspension > Anti-roll bars > Linkage ball joints
|
Rear | 104 | ×17 | 6.1% | Strong |
|
Service brake imbalance (rear)
Brakes > Brake performance > Service Brake Efficiency (sp) > Rbt (sp) > Service brake imbalance
|
Rear | 56 | ×5.0 | 3.3% | Likely |
|
Linkage ball joints (front)
Suspension > Anti-roll bars > Linkage ball joints
|
Front | 185 | ×4.1 | 10.8% | Likely |
|
SRS malfunction indicator lamp
Seat belts and supplementary restraint systems > SRS malfunction indicator lamp
|
Any | 100 | ×3.6 | 5.9% | Likely |
|
Ball joint (front)
Suspension > Anti-roll bars > Ball joint
|
Front | 44 | ×3.4 | 2.6% | Likely |
|
Malfunction indicator lamp
Noise, emissions and leaks > Exhaust emissions > Compression ignition > Malfunction indicator lamp
|
Any | 134 | ×2.9 | 7.9% | Possible |
|
Ball joint (front)
Suspension > Suspension arms > Ball joint
|
Front | 335 | ×2.8 | 19.6% | Possible |
|
Rear fog lamp
Lamps, reflectors and electrical equipment > Front and rear fog lamps > Rear fog lamp > Rear fog lamp
|
Any | 55 | ×2.7 | 3.2% | Possible |
|
Pins and bushes (front)
Suspension > Suspension arms > Pins and bushes
|
Front | 209 | ×2.5 | 12.2% | Possible |
|
Rigid brake pipes (rear)
Brakes > Rigid brake pipes
|
Rear | 50 | ×2.5 | 2.9% | 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).