| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 1060 |
| Windscreen wiper does not clear the windscreen effectively | 792 |
| Headlamp aim out of alignment | 532 |
| Brake pipe excessively corroded | 350 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 250 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 233 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 223 |
| Nearside Stop lamp not working |1.2.1b| | 223 |
| Offside Stop lamp not working |1.2.1b| | 202 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 182 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 166 |
| Registration plate issues | 154 |
| Brakes imbalanced across an axle | 105 |
| Windscreen has damage | 96 |
| Offside Rear Stop lamp not working |1.2.1b| | 87 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 76 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 76 |
| Nearside Rear Stop lamp not working |1.2.1b| | 72 |
| Nearside Front Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 69 |
| Offside Front Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 66 |
| Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 65 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 65 |
| Parking brake lever has no reserve travel |3.1.6b| | 63 |
| Offside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 57 |
| Nearside Front Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 54 |
| Nearside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 53 |
| Parking brake: efficiency below requirements |3.7.B.7| | 47 |
| Offside Front Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 45 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 43 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 42 |
| Nearside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 40 |
| Battery insecure |1.9.1| | 39 |
| Offside Rear fog lamp not working |1.3.2b| | 35 |
| Horn not working |1.6.2a| | 35 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 35 |
| Service brake: efficiency below requirements |3.7.B.7| | 34 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 34 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 33 |
| Rear parking brake recording little or no effort | 32 |
| Brake hose excessively deteriorated | 32 |
| Centre Stop lamp not working |1.2.1b| | 30 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 30 |
| Nearside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 28 |
| Exhaust emits an excessive level of metered smoke for a non-turbo charged engine |7.4.B.3b| | 28 |
| Offside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 28 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 27 |
| Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 26 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 26 |
| Rear fog lamp not working |1.3.2b| | 23 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 23 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 23 |
| Offside Front Shock absorbers has a serious fluid leak | 22 |
| Front position lamp|s| not working |1.1.A.3b| | 22 |
| Front brake application uneven | 22 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 21 |
| Offside Front Position lamp not working |4.2.1 |a|| | 21 |
| Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 20 |
| Stop lamp not working |1.2.1b| | 20 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 20 |
| Windscreen wiper blade insecure | 19 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 19 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 19 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine (8.2.2.2 (b)) | 19 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 19 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 18 |
| Offside Front Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 18 |
| Rear brake application uneven | 17 |
| Nearside Front Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 17 |
| Nearside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 17 |
| Offside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 17 |
| Nearside Headlamp insecure |1.7.3| | 17 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 16 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 16 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine |8.2.2.2 |b|| | 15 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 15 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 15 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 15 |
| Offside Headlamp insecure |1.7.3| | 15 |
| Nearside Front Seat belt locking mechanism does not secure or release |5.2.5a| | 15 |
| Rear fog lamp tell tale not working |1.3.1b| | 14 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 14 |
| Nearside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 14 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 14 |
| Rear brake binding | 14 |
| Rear Stop lamp not working |1.2.1b| | 14 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 14 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn |5.3.4 |a| |i|| | 14 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 13 |
| Emissions not tested |7.0| | 13 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 13 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 13 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 13 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 12 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 12 |
| Windscreen washer not working | 12 |
| Horn not working (7.7 (a)) | 12 |
| Anti-lock braking system warning lamp indicates an ABS fault | 12 |
| Nearside Rear Shock absorber has an excessively worn bush |2.7.4| | 12 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 12 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn |5.3.4 |a| |i|| | 12 |