| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 517 |
| Windscreen wiper does not clear the windscreen effectively | 211 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 187 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 161 |
| Parking brake: efficiency below requirements |3.7.B.7| | 133 |
| Registration plate lamp issues | 120 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 117 |
| Nearside Front Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 109 |
| Offside Front Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 94 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 89 |
| Rear parking brake recording little or no effort | 85 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 72 |
| Registration plate issues | 72 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 69 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 69 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 59 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 57 |
| Brakes imbalanced across an axle | 56 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 49 |
| Front brake disc in such a condition that it is seriously weakened | 49 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 45 |
| Parking brake lever has no reserve travel |3.1.6b| | 45 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 43 |
| Horn not working |1.6.2a| | 39 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 38 |
| Nearside Front Upper Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 37 |
| Rear Exhaust system not adequately supported |7.1.1| | 36 |
| Brake hose excessively deteriorated | 35 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 34 |
| Offside Front Upper Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 32 |
| Windscreen washer not working | 30 |
| Rear brake binding | 29 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 29 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 29 |
| Battery insecure |1.9.1| | 26 |
| Offside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 25 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 23 |
| Nearside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 23 |
| Anti-lock braking system warning lamp indicates an ABS fault | 22 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 21 |
| Front brake excessively fluctuating | 20 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 19 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 19 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 19 |
| Offside Rear fog lamp not working |1.3.2b| | 19 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 18 |
| Rear brake disc in such a condition that it is seriously weakened | 18 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 18 |
| Emissions not tested |7.0| | 18 |
| Brake pipe excessively corroded | 17 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 17 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 17 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 17 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 17 |
| Nearside Side repeater insecure |1.4.A.2b| | 16 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 16 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 16 |
| Nearside Stop lamp not working |1.2.1b| | 16 |
| Nearside Front Upper Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 15 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 15 |
| Rear fog lamp not working |1.3.2b| | 14 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 14 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 14 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 14 |
| Offside Side repeater insecure |1.4.A.2b| | 14 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 14 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 13 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 12 |
| Nearside Front Upper Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 12 |
| Offside Front Position lamp not working |4.2.1 |a|| | 12 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 12 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 11 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 11 |
| Windscreen has damage | 11 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 11 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 11 |
| Front passenger door cannot be opened from outside the vehicle |6.2.B.1b| | 10 |
| Offside Front Upper Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 10 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 10 |
| Front brake application uneven | 10 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 10 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 10 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 10 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 10 |
| Horn not working |7.7 |a| |ii|| | 9 |
| Centre Rear Exhaust has a major leak of exhaust gases |7.1.2| | 9 |
| Emissions not tested |7.3.A.1| | 9 |
| Horn not working (7.7 (a) (ii)) | 9 |
| Emissions not tested (8.2.1.2 (d)) | 9 |
| Offside Front Direction indicator not working |1.4.A.2c| | 9 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 9 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 9 |
| Centre Rear Seat belt retracting mechanism defective |5.2.5b| | 9 |
| Rear Brake cable insecure | 8 |
| Offside front brake juddering severely |3.7.A.2b| | 8 |
| Offside Rear Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 8 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 8 |
| Nearside Rear Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 8 |
| Nearside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 8 |
| Exhaust system not adequately supported |7.1.1| | 8 |
| Offside Front Upper Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 8 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 8 |
| Offside Rear Stop lamp not working |1.2.1b| | 8 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 8 |
| Parking brake lever, pawl mechanism pivots or their associated mountings are insecure |3.1.4b| | 8 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 8 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 8 |
| Centre Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 8 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 8 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 8 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 8 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 8 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 8 |