| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 1901 |
| Windscreen wiper does not clear the windscreen effectively | 1900 |
| Headlamp aim out of alignment | 1062 |
| Brake pipe excessively corroded | 842 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 494 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 463 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 439 |
| Offside Stop lamp not working |1.2.1b| | 425 |
| Nearside Stop lamp not working |1.2.1b| | 399 |
| Registration plate issues | 395 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 365 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 344 |
| Brakes imbalanced across an axle | 245 |
| Offside Rear Stop lamp not working |1.2.1b| | 170 |
| Nearside Rear Stop lamp not working |1.2.1b| | 166 |
| Nearside Front Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 156 |
| Offside Front Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 151 |
| Windscreen has damage | 147 |
| Parking brake lever has no reserve travel |3.1.6b| | 141 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 133 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 133 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 133 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 131 |
| Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 130 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 125 |
| Parking brake: efficiency below requirements |3.7.B.7| | 106 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 105 |
| Horn not working |1.6.2a| | 102 |
| Nearside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 100 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 94 |
| Nearside Front Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 90 |
| Offside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 87 |
| Offside Front Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 86 |
| Offside Rear fog lamp not working |1.3.2b| | 84 |
| Battery insecure |1.9.1| | 80 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 78 |
| Service brake: efficiency below requirements |3.7.B.7| | 76 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 69 |
| Rear fog lamp not working |1.3.2b| | 66 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine (8.2.2.2 (b)) | 65 |
| Anti-lock braking system warning lamp indicates an ABS fault | 63 |
| Nearside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 62 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 59 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 59 |
| Brake hose excessively deteriorated | 58 |
| Centre Stop lamp not working |1.2.1b| | 56 |
| Windscreen wiper blade insecure | 56 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 55 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 55 |
| Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 53 |
| Nearside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 52 |
| Front brake application uneven | 51 |
| Rear parking brake recording little or no effort | 51 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn |5.3.4 |a| |i|| | 50 |
| Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 49 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 48 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 48 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 48 |
| Offside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 48 |
| Exhaust emissions test not completed because smoke levels are significantly in excess of the specified limit values (8.2.2.2 (f)) | 47 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 44 |
| Nearside Rear Shock absorbers has a serious fluid leak | 43 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn |5.3.4 |a| |i|| | 43 |
| Nearside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 42 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 41 |
| Rear brake binding | 39 |
| Horn not working (7.7 (a)) | 39 |
| Nearside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 39 |
| Windscreen washer not working | 38 |
| Exhaust emits an excessive level of metered smoke for a non-turbo charged engine |7.4.B.3b| | 37 |
| Nearside Front Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 37 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 34 |
| Emissions not tested |7.0| | 33 |
| Offside Front Position lamp not working |4.2.1 |a|| | 32 |
| Offside Rear Shock absorbers has a serious fluid leak | 32 |
| Offside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 32 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 31 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 30 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine |8.2.2.2 |b|| | 30 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 30 |
| Rear Stop lamp not working |1.2.1b| | 30 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 29 |
| Exhaust emits excessive smoke or vapour likely to obscure the vision of other road users (8.2.2.2 (c)) | 29 |
| Stop lamp not working |1.2.1b| | 29 |
| Rear fog lamp tell tale not working |1.3.1b| | 29 |
| Offside Front Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 28 |
| Offside Rear Outer Suspension component mounting prescribed area excessively corroded significantly reducing structural strength sill (5.3.6 (a) (i)) | 28 |
| Front position lamp|s| not working |1.1.A.3b| | 28 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 28 |
| Nearside Front Seat belt locking mechanism does not secure or release |5.2.5a| | 27 |
| Rear brake application uneven | 27 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 27 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 27 |