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 763 failed first attempts in 2025 that the age-and-mileage comparison can be computed on.
Standout: Drive shafts — Joints (front) — 29.2% of this year's failed first attempts
Recorded on 223 of those tests. It tops the table on elevation — about 4.8× 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.
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 |
|---|---|---|---|---|---|
|
Drive shafts — Joints (front)
Body, chassis, structure > Transmission > Drive shafts > Joints
|
Front | 223 | ×4.8 | 29.2% | Likely |
|
Rear fog lamp (rear)
Lamps, reflectors and electrical equipment > Front and rear fog lamps > Rear fog lamp > Rear fog lamp
|
Rear | 21 | ×3.3 | 2.8% | Possible |
| Diesel emissions test (compression-ignition rules for vehicles from 01/07/2008) | Any | 44 | ×3.3 | 5.8% | Likely |
|
Exhaust system (rear)
Body, chassis, structure > Exhaust system
|
Rear | 46 | ×2.8 | 6.0% | Possible |
|
Wheel bearings (front)
Suspension > Wheel bearings
|
Front | 24 | ×2.4 | 3.1% | Possible |
|
Visibility — Wipers
Visibility > Wipers
|
Any | 40 | ×2.2 | 5.2% | 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).