| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 1244 |
| Registration plate lamp issues | 1106 |
| Headlamp aim out of alignment | 840 |
| Brake pipe excessively corroded | 728 |
| Anti-lock braking system warning lamp indicates an ABS fault | 214 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 212 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 207 |
| Nearside Stop lamp not working |1.2.1b| | 207 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 202 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 193 |
| Offside Stop lamp not working |1.2.1b| | 177 |
| Brakes imbalanced across an axle | 140 |
| Registration plate issues | 137 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 129 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 127 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 111 |
| Offside Front Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 99 |
| Nearside Front Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 96 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 84 |
| Parking brake lever has no reserve travel |3.1.6b| | 83 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 80 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 74 |
| Windscreen has damage | 74 |
| Offside Rear Stop lamp not working |1.2.1b| | 73 |
| Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 67 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 64 |
| Nearside Rear Stop lamp not working |1.2.1b| | 61 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 59 |
| Offside Front Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 55 |
| Offside Front Position lamp not working |4.2.1 |a|| | 52 |
| Nearside Front Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 49 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 48 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 47 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 47 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine (8.2.2.2 (b)) | 46 |
| Nearside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 45 |
| Parking brake: efficiency below requirements |3.7.B.7| | 45 |
| Battery insecure |1.9.1| | 44 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn |5.3.4 |a| |i|| | 42 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 42 |
| Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 39 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 39 |
| Horn not working |1.6.2a| | 39 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn |5.3.4 |a| |i|| | 38 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 34 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 34 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 32 |
| Centre Stop lamp not working |1.2.1b| | 32 |
| Windscreen washer not working | 31 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 31 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 30 |
| Brake hose excessively deteriorated | 29 |
| Rear fog lamp not working |1.3.2b| | 28 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 26 |
| Exhaust emissions test not completed because smoke levels are significantly in excess of the specified limit values (8.2.2.2 (f)) | 26 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 25 |
| Rear brake binding | 25 |
| Rear parking brake recording little or no effort | 25 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 24 |
| Windscreen wiper blade insecure | 23 |
| Offside Rear fog lamp not working |1.3.2b| | 23 |
| Front brake application uneven | 23 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 21 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 20 |
| Stop lamp not working |1.2.1b| | 20 |
| Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 19 |
| Nearside Front Lower Shock absorber has an excessively worn bush |2.7.4| | 19 |
| Nearside Rear Shock absorber has an excessively worn bush |2.7.4| | 19 |
| Offside Rear Shock absorber has an excessively worn bush |2.7.4| | 19 |
| Nearside Front Lower Shock absorbers has an excessively worn bush (5.3.2 (c)) | 18 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 18 |
| Exhaust emits excessive smoke or vapour likely to obscure the vision of other road users (8.2.2.2 (c)) | 18 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 18 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 17 |
| Horn not working (7.7 (a) (ii)) | 17 |
| Offside Front Anti-roll bar linkage fractured (5.3.3 (b) (ii)) | 17 |
| Service brake: efficiency below requirements |3.7.B.7| | 17 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine |8.2.2.2 |b|| | 16 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 16 |
| Nearside Headlamp insecure |1.7.3| | 16 |