| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 360 |
| Windscreen wiper does not clear the windscreen effectively | 219 |
| Registration plate lamp issues | 199 |
| Headlamp aim out of alignment | 181 |
| Registration plate issues | 127 |
| Brakes imbalanced across an axle | 117 |
| Offside Rear fog lamp not working |1.3.2b| | 69 |
| Nearside Stop lamp not working |1.2.1b| | 53 |
| Rear parking brake recording little or no effort | 46 |
| Offside Stop lamp not working |1.2.1b| | 45 |
| Parking brake: efficiency below requirements |3.7.B.7| | 42 |
| Rear fog lamp not working |1.3.2b| | 40 |
| Offside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 39 |
| Service brake: efficiency below requirements |3.7.B.7| | 38 |
| Nearside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 36 |
| Centre Stop lamp not working |1.2.1b| | 35 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 34 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 29 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 28 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 28 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 26 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 24 |
| Windscreen has damage | 24 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 23 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 23 |
| Rear brake application uneven | 23 |
| Nearside Rear Stop lamp not working |1.2.1b| | 21 |
| Front brake disc in such a condition that it is seriously weakened | 21 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 21 |
| Rear Exhaust system not adequately supported |7.1.1| | 20 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 20 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 19 |
| Parking brake lever has no reserve travel |3.1.6b| | 19 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 18 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 18 |
| Front Steering damper leaking oil |2.2.C.1f| | 17 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 16 |
| Offside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 16 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 16 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 16 |
| Horn not working |1.6.2a| | 15 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 15 |
| Nearside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 15 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 15 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 14 |
| Offside Rear Stop lamp not working |1.2.1b| | 13 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 13 |
| Battery insecure |1.9.1| | 12 |
| Rear Rear fog lamp not working |1.3.2b| | 12 |
| Steering damper leaking oil |2.2.C.1f| | 12 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 11 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 11 |
| Windscreen washer not working | 11 |
| Offside Front drive shaft coupling is excessively worn |2.5.C.1c| | 11 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 11 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 11 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 10 |
| Nearside Front Anti-roll bar linkage fractured |2.4.G.1| | 10 |
| Offside Front Anti-roll bar linkage fractured |2.4.G.1| | 10 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 10 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 10 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 10 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 10 |
| Offside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 10 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 10 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 10 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 10 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 10 |
| Offside front brake binding |3.7.B.1| | 10 |
| Nearside Rear Braking system leaking |3.6.A.1| | 9 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 9 |
| Direction indicators not working |1.4.A.2c| | 9 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 9 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 9 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 9 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 9 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 9 |
| Offside Rear Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 9 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 9 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 9 |
| Offside Front brake disc excessively pitted |3.5.1h| | 9 |
| Nearside Rear Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 9 |
| Horn not working (7.7 (a) (ii)) | 9 |
| Stop lamp not working |1.2.1b| | 8 |
| Rear fog lamp not working |4.5.1 |a| |ii|| | 8 |
| Nearside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 8 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 8 |
| Emissions not tested |7.0| | 8 |
| Nearside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 8 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 8 |
| Offside Front Direction indicator not working |1.4.A.2c| | 8 |
| Offside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 8 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 8 |
| Exhaust system not adequately supported |7.1.1| | 8 |
| Offside Rear Braking system leaking |3.6.A.1| | 8 |
| Rear brake binding | 8 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 8 |
| Nearside Side repeater not working |1.4.A.2c| | 8 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 8 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 7 |
| Brake performance not tested |3.7.A.1| | 7 |
| Service brake: efficiency below requirements |3.7.C.1a| | 7 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 7 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 7 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 7 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 7 |
| Nearside front brake binding |3.7.B.1| | 7 |
| Horn not working (7.7 (a)) | 7 |
| Hazard warning lamps inoperative |1.4.B.1b| | 7 |
| Brake hose excessively deteriorated | 7 |
| Centre Rear Stop lamp not working |1.2.1b| | 7 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 7 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 7 |
| Nearside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 7 |
| Hazard warning switch faulty |1.4.B.1d| | 7 |
| Nearside Front Anti-roll bar linkage insecure |2.4.G.1| | 7 |
| Offside Rear Shock absorbers has a serious fluid leak | 6 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 6 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 6 |
| Offside Front Anti-roll bar linkage insecure |2.4.G.1| | 6 |
| All direction indicators not working (4.4.1 (a) (ii)) | 6 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 6 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 6 |
| Rear fog lamp tell tale not working |1.3.1b| | 6 |
| Offside Side repeater not working |1.4.A.2c| | 6 |
| Offside Rear Lower Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 6 |
| Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 6 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 6 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 6 |
| Nearside Rear Suspension spring mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 6 |
| Nearside Rear Lower Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 6 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 6 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 6 |
| Nearside Front front brake binding |3.7.B.1| | 6 |
| Mechanical brake component has restricted free movement | 6 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 6 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 6 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 6 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 6 |
| Nearside Side repeater incomplete |1.5.A1b| | 6 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 6 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 6 |
| Nearside Rear Statutory seat belt missing |5.1.1| | 5 |
| Offside Rear Statutory seat belt missing |5.1.1| | 5 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 5 |
| Offside Side repeater incomplete |1.5.A1b| | 5 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 5 |
| Offside Front Position lamp not working |4.2.1 |a|| | 5 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 5 |
| Nearside Rear Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 5 |
| Offside Rear Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 5 |
| Hazard warning switch inoperative (4.4.2 (a) (ii)) | 5 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 5 |
| Nearside Headlamp aim beam image kick up to the offside |1.8| | 5 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 5 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 5 |
| Offside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 5 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 5 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 5 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 5 |
| Power steering component|s| leaking |2.3.3b| | 5 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 5 |
| Offside Front Drag link end ball joint has excessive play |2.2.B.1f| | 5 |
| Hazard warning lamps inoperative (4.4.1 (e)) | 5 |
| Offside Rear Suspension spring mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 5 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 5 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 5 |
| Nearside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 5 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 5 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 5 |
| Nearside Rear brake drum contaminated by oil |3.5.1h| | 5 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 5 |
| Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 5 |
| Nearside Rear Position lamp not working |4.2.1 |a|| | 5 |
| Centre Upper Stop lamp not working |1.2.1b| | 5 |
| Offside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 5 |