| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 739 |
| Headlamp aim out of alignment | 617 |
| Windscreen wiper does not clear the windscreen effectively | 305 |
| Registration plate issues | 264 |
| Anti-lock braking system warning lamp indicates an ABS fault | 218 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 207 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 204 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 154 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 150 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 118 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 104 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 92 |
| Brakes imbalanced across an axle | 91 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 89 |
| Registration plate lamp issues | 82 |
| Parking brake: efficiency below requirements |3.7.B.7| | 80 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 78 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 76 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 73 |
| Nearside Stop lamp not working |1.2.1b| | 70 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 70 |
| Nearside Headlamp not working on main beam |1.7.5a| | 69 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 68 |
| Rear parking brake recording little or no effort | 67 |
| Rear brake binding | 64 |
| Offside Front coil spring incomplete |2.4.C.1a| | 62 |
| Nearside Front coil spring fractured |2.4.C.1a| | 61 |
| Offside Front coil spring fractured |2.4.C.1a| | 60 |
| Offside Stop lamp not working |1.2.1b| | 58 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 53 |
| Front brake disc in such a condition that it is seriously weakened | 53 |
| Direction indicators incorrect colour |1.4.A.2f| | 50 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 50 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 48 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 46 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 44 |
| Offside Front coil spring broken |2.4.C.1a| | 41 |
| Brake hose excessively deteriorated | 40 |
| Offside Headlamp not working on main beam |1.7.5a| | 39 |
| Nearside Front coil spring incomplete |2.4.C.1a| | 38 |
| Horn not working |1.6.2a| | 38 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 37 |
| Windscreen has damage | 36 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 34 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 33 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 30 |
| Nearside Rear Stop lamp not working |1.2.1b| | 30 |
| Nearside Front coil spring broken |2.4.C.1a| | 29 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 28 |
| Parking brake lever has no reserve travel |3.1.6b| | 28 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 27 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 27 |
| Nearside front brake binding |3.7.B.1| | 27 |
| Rear Direction indicators incorrect colour |1.4.A.2f| | 26 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 26 |
| Offside Rear Stop lamp not working |1.2.1b| | 25 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 25 |
| Nearside Rear Upper Shock absorber has an excessively worn bush |2.7.4| | 25 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 25 |
| Emissions not tested |7.0| | 24 |
| Offside front brake binding |3.7.B.1| | 24 |
| Offside Front Side repeater incorrect colour |1.4.A.2f| | 24 |
| Offside Rear Upper Shock absorber has an excessively worn bush |2.7.4| | 24 |
| Stop lamp not working |1.2.1b| | 24 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 24 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 24 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 24 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 24 |
| Rear brake application uneven | 24 |
| Rear brake disc in such a condition that it is seriously weakened | 23 |
| Rear Stop lamp not working |1.2.1b| | 22 |
| Nearside Front Side repeater incorrect colour |1.4.A.2f| | 21 |
| Front brake application uneven | 21 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 20 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 20 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 20 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 20 |
| Offside Steering rack gaiter split |2.2.D.2d| | 20 |
| Offside Rear fog lamp not working |1.3.2b| | 20 |
| Offside Front brake disc excessively pitted |3.5.1h| | 20 |
| Offside Rear Shock absorber has an excessively worn bush |2.7.4| | 20 |
| Centre Exhaust system not adequately supported |7.1.1| | 20 |
| Service brake: efficiency below requirements |3.7.B.7| | 19 |
| Offside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 19 |
| Offside Front Direction indicator not working |1.4.A.2c| | 19 |
| Nearside Rear Shock absorber has an excessively worn bush |2.7.4| | 19 |
| Nearside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 19 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 18 |
| Nearside Rear Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 18 |
| Nearside Front Anti-roll bar ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 18 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 18 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 18 |
| Offside Rear coil spring incomplete |2.4.C.1a| | 17 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 17 |
| Mechanical brake component has restricted free movement | 17 |
| Offside Front Anti-roll bar ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 17 |
| Exhaust system not adequately supported |7.1.1| | 17 |
| Brake hose has insufficient room to move | 16 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 16 |
| Nearside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2| | 16 |
| Hazard warning switch faulty |1.4.B.1d| | 16 |
| Nearside Side repeater not working |1.4.A.2c| | 16 |
| Offside Rear coil spring fractured |2.4.C.1a| | 16 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 15 |
| Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b)) | 15 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 15 |
| Power steering component|s| leaking |2.3.3b| | 15 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 14 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 14 |
| Offside Front front brake binding |3.7.B.1| | 14 |
| Anti-lock braking system warning lamp does not illuminate |3.4.1b| | 14 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 14 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 14 |
| Nearside Front front brake binding |3.7.B.1| | 14 |
| Side repeater incorrect colour |1.4.A.2f| | 13 |
| Brake performance not tested |3.7.A.1| | 13 |
| Front Direction indicators incorrect colour |1.4.A.2f| | 13 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 13 |
| Offside Side repeater not working |1.4.A.2c| | 13 |
| Offside Front Headlamp not working on main 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 |
| Rear Direction indicator incorrect colour |1.4.A.2f| | 12 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 12 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 12 |
| Offside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2| | 12 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 12 |
| Power steering pipe|s| or hose|s| leaking from a joint |2.3.3b| | 12 |
| Offside Rear Trailing arm has excessive play in a pin/bush |2.4.G.2| | 11 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 11 |
| Centre Stop lamp not working |1.2.1b| | 11 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 11 |
| Direction indicator incorrect colour |1.4.A.2f| | 11 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 11 |
| Rear Exhaust system not adequately supported |7.1.1| | 11 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 11 |
| Rear fog lamp not working |1.3.2b| | 11 |
| Windscreen wiper blade insecure | 11 |
| Nearside Front Wheel bolt|s| missing |4.2.A.1e| | 11 |
| Nearside Rear Wheel bolt|s| missing |4.2.A.1e| | 11 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 10 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 10 |
| Offside Front Steering rack gaiter split |2.2.D.2d| | 10 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 10 |
| Offside Front position lamp|s| incorrect colour |1.1.A.3e| | 10 |
| Offside Rear coil spring broken |2.4.C.1a| | 10 |
| Offside Front Wheel bolt|s| missing |4.2.A.1e| | 10 |
| Centre Rear Stop lamp not working |1.2.1b| | 10 |
| Offside Rear Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 10 |
| Offside Rear Wheel bolt|s| missing |4.2.A.1e| | 10 |