| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 901 |
| Windscreen wiper does not clear the windscreen effectively | 892 |
| Registration plate lamp issues | 571 |
| Parking brake: efficiency below requirements |3.7.B.7| | 409 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 267 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 224 |
| Horn not working |1.6.2a| | 219 |
| Brakes imbalanced across an axle | 218 |
| Rear parking brake recording little or no effort | 212 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 211 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 156 |
| Service brake: efficiency below requirements |3.7.B.7| | 148 |
| Front brake disc in such a condition that it is seriously weakened | 138 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 136 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 133 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 133 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 131 |
| Registration plate issues | 129 |
| Brake pipe excessively corroded | 124 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 114 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 110 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 110 |
| Offside Stop lamp not working |1.2.1b| | 92 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 91 |
| Rear brake disc in such a condition that it is seriously weakened | 91 |
| Rear brake application uneven | 89 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 87 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 86 |
| Nearside Stop lamp not working |1.2.1b| | 84 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 83 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 79 |
| Parking brake lever has no reserve travel |3.1.6b| | 78 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 78 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 72 |
| Rear Exhaust system not adequately supported |7.1.1| | 71 |
| Indicator switch faulty |1.4.A.1| | 71 |
| Rear brake binding | 66 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 66 |
| Anti-lock braking system warning lamp indicates an ABS fault | 66 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 65 |
| Emissions not tested |7.0| | 63 |
| Offside Rear Tie bar/rod has excessive play in a ball joint |2.4.G.2| | 61 |
| Nearside Rear Tie bar/rod has excessive play in a ball joint |2.4.G.2| | 58 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 55 |
| Centre Rear Seat belt retracting mechanism defective |5.2.5b| | 53 |
| Offside Rear Tie bar/rod has excessive play in a pin/bush |2.4.G.2| | 49 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 45 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 44 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 44 |
| Windscreen has damage | 43 |
| Nearside Rear Tie bar/rod has excessive play in a pin/bush |2.4.G.2| | 42 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 42 |
| Windscreen wiper blade insecure | 42 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 42 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 40 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 37 |
| Exhaust system not adequately supported |7.1.1| | 37 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 36 |
| Rear brake disc excessively pitted |3.5.1h| | 34 |
| Offside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 33 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 32 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 32 |
| Centre Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 32 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 32 |
| Front brake application uneven | 31 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 30 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 28 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 27 |
| Nearside Rear Stop lamp not working |1.2.1b| | 26 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 26 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 25 |
| Centre Exhaust system not adequately supported |7.1.1| | 24 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 24 |
| Offside Rear Suspension arm has excessive play in a ball joint |2.4.G.2| | 24 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 23 |
| Offside Front Anti-lock braking system component excessively damaged |3.4.2| | 23 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 23 |
| Offside Rear fog lamp not working |1.3.2b| | 23 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 23 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 22 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 22 |
| Nearside Headlamp insecure |1.7.3| | 22 |
| Offside Rear Stop lamp not working |1.2.1b| | 22 |
| Offside Side repeater not working |1.4.A.2c| | 21 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 21 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 21 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 21 |
| Offside Front Side repeater incorrect colour |1.4.A.2f| | 20 |
| Offside Front brake disc excessively pitted |3.5.1h| | 20 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 20 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 20 |
| Offside Headlamp not working on main beam |1.7.5a| | 20 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 19 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 19 |
| Offside Headlamp insecure |1.7.3| | 19 |
| 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| | 19 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 19 |
| Offside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2| | 19 |
| Driver`s seat insecure |6.2.A.1| | 18 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 18 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 18 |
| Offside Rear brake disc excessively scored |3.5.1h| | 18 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 18 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 17 |
| Nearside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2| | 17 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 17 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 17 |
| Nearside Front Side repeater incorrect colour |1.4.A.2f| | 17 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 17 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 17 |