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 1,089 of 1,091 failed first attempts (99.8%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.
Standout: Shock absorbers (front) — 16.0% of this year's failed first attempts
Recorded on 174 of those tests. It tops the table on elevation — about 9.9× 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 |
|---|---|---|---|---|---|
|
Shock absorbers (front)
Suspension > Shock absorbers
|
Front | 174 | ×9.9 | 16.0% | Strong |
|
Macpherson strut (front)
Suspension > Macpherson strut > Macpherson strut
|
Front | 30 | ×5.1 | 2.8% | Likely |
|
Exhaust system (front)
Body, chassis, structure > Exhaust system
|
Front | 43 | ×4.8 | 3.9% | Likely |
|
Shock absorbers (rear)
Suspension > Shock absorbers
|
Rear | 131 | ×4.2 | 12.0% | Likely |
|
Pins and bushes (front)
Suspension > Suspension arms > Pins and bushes
|
Front | 142 | ×2.9 | 13.0% | Possible |
|
Emissions not tested
Noise, emissions and leaks > Exhaust emissions > Spark ignition > Emissions not tested
|
Any | 33 | ×2.7 | 3.0% | Possible |
|
Catalyst emissions
Noise, emissions and leaks > Exhaust emissions > Spark ignition > Catalyst emissions
|
Any | 83 | ×2.4 | 7.6% | Possible |
|
Registration plate lamp(s)
Lamps, reflectors and electrical equipment > Registration plate lamp(s)
|
Any | 61 | ×2.1 | 5.6% | 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).