| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 1405 |
| Registration plate lamp issues | 1148 |
| Windscreen wiper does not clear the windscreen effectively | 901 |
| Headlamp aim out of alignment | 802 |
| Rear brake binding | 744 |
| Registration plate issues | 335 |
| Rear Exhaust system not adequately supported |7.1.1| | 270 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 263 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 221 |
| Parking brake: efficiency below requirements |3.7.B.7| | 219 |
| Brakes imbalanced across an axle | 199 |
| Rear parking brake recording little or no effort | 157 |
| Rear Mechanical brake component has restricted free movement | 134 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 129 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 129 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 127 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 122 |
| Exhaust system not adequately supported |7.1.1| | 114 |
| Nearside Stop lamp not working |1.2.1b| | 99 |
| Service brake: efficiency below requirements |3.7.B.7| | 92 |
| Parking brake lever has no reserve travel |3.1.6b| | 92 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 86 |
| Offside Stop lamp not working |1.2.1b| | 83 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 78 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 76 |
| Battery insecure |1.9.1| | 74 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 72 |
| Windscreen has damage | 67 |
| Front Exhaust system not adequately supported |7.1.1| | 66 |
| Offside Rear fog lamp not working |1.3.2b| | 61 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 59 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 57 |
| Windscreen washer not working | 57 |
| Rear brake application uneven | 54 |
| Nearside Rear Stop lamp not working |1.2.1b| | 51 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 50 |
| Centre Stop lamp not working |1.2.1b| | 49 |
| Anti-lock braking system warning lamp indicates an ABS fault | 48 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 46 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 43 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 42 |
| Offside Rear Stop lamp not working |1.2.1b| | 41 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 40 |
| Rear fog lamp not working |1.3.2b| | 40 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 38 |
| Offside front brake binding |3.7.B.1| | 38 |
| Front brake application uneven | 38 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 38 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 38 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 36 |
| Brake hose excessively deteriorated | 36 |
| Windscreen wiper blade insecure | 35 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 33 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 32 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 32 |
| Power steering fluid level below minimum |2.3.1| | 32 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 32 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 30 |
| Nearside Rear Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2| | 30 |
| Horn not working |1.6.2a| | 30 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 29 |
| Power steering malfunctioning |2.3.3a| | 29 |
| Front brake disc in such a condition that it is seriously weakened | 28 |
| Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 27 |
| Brake performance not tested |3.7.A.1| | 27 |
| Nearside Steering pivot point has excessive play |2.2.B.1g| | 27 |
| Offside Front front brake binding |3.7.B.1| | 27 |
| Offside Rear fog lamp emits a light other than red |1.3.2e| | 27 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 26 |
| Offside Front Lower Ball joint has excessive play |2.2.B.1f| | 26 |
| Front position lamp|s| not working |1.1.A.3b| | 25 |
| Offside Rear Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement |2.4.B.2| | 25 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 25 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 25 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 24 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 24 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 24 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 24 |
| Offside Rear Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2| | 24 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 24 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 23 |
| Offside Front brake disc excessively pitted |3.5.1h| | 21 |
| Nearside Front Lower Ball joint has excessive play |2.2.B.1f| | 21 |
| Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 21 |
| Nearside Front Steering pivot point has excessive play |2.2.B.1g| | 21 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 20 |
| Nearside Rear Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement |2.4.B.2| | 20 |
| Mechanical brake component has restricted free movement | 20 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 20 |
| Centre Exhaust system not adequately supported |7.1.1| | 20 |
| Trailer electrical socket insecure |1.9.3a| | 19 |
| Rear fog lamp tell tale not working |1.3.1b| | 19 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 19 |
| Nearside front brake binding |3.7.B.1| | 19 |
| Offside Rear Brake lever has restricted free movement |3.5.1k| | 19 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 18 |
| Service brake: efficiency below requirements |3.7.C.1a| | 18 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 18 |
| Offside Rear position lamp|s| incorrect colour |1.1.A.3e| | 18 |
| Emissions not tested |7.0| | 17 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 17 |
| Nearside Rear Brake lever has restricted free movement |3.5.1k| | 17 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 17 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 17 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 17 |
| Nearside Front Wheel nut|s| missing |4.2.A.1e| | 17 |
| Rear fog lamp emits a light other than red |1.3.2e| | 17 |
| Nearside Rear Exhaust system not adequately supported |7.1.1| | 17 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 17 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 16 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 16 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 16 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 16 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 16 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 16 |