| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 124 |
| Parking brake: efficiency below requirements |3.7.B.7| | 117 |
| Headlamp aim out of alignment | 96 |
| Registration plate lamp issues | 93 |
| Rear parking brake recording little or no effort | 66 |
| Anti-lock braking system warning lamp indicates an ABS fault | 64 |
| Brake pipe excessively corroded | 57 |
| Front brake disc in such a condition that it is seriously weakened | 26 |
| Rear brake binding | 22 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 22 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 20 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 18 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 18 |
| Centre Stop lamp not working |1.2.1b| | 18 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 17 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 17 |
| Registration plate issues | 17 |
| Brakes imbalanced across an axle | 17 |
| Battery insecure |1.9.1| | 15 |
| Nearside Stop lamp not working |1.2.1b| | 15 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 14 |
| Windscreen wiper blade insecure | 13 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 12 |
| Brake hose excessively deteriorated | 12 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 12 |
| Parking brake lever has no reserve travel |3.1.6b| | 10 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 9 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 9 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 8 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 7 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 7 |
| Nearside Side repeater not working |1.4.A.2c| | 7 |
| Front brake application uneven | 7 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 7 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 7 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 7 |
| Nearside Rear Stop lamp not working |1.2.1b| | 7 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 6 |
| Offside Rear Stop lamp not working |1.2.1b| | 6 |
| Front brake excessively fluctuating | 6 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 6 |
| Service brake: efficiency below requirements |3.7.B.7| | 6 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 6 |
| Offside Steering rack gaiter split |2.2.D.2d| | 5 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 5 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 5 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 5 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 5 |
| Rear fog lamp tell tale not working |1.3.1b| | 5 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 5 |
| Rear brake application uneven | 5 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 5 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 5 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 5 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 5 |
| Nearside Steering rack gaiter insecure |2.2.D.2d| | 5 |
| Offside Steering rack gaiter insecure |2.2.D.2d| | 5 |
| Hazard warning switch faulty |1.4.B.1d| | 5 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 5 |
| Offside Stop lamp not working |1.2.1b| | 5 |
| Power steering fluid level below minimum |2.3.1| | 4 |
| Offside Side repeater not working |1.4.A.2c| | 4 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 4 |
| Horn not working |1.6.2a| | 4 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 4 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 4 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 4 |
| Centre Rear Upper Stop lamp not working |1.2.1b| | 4 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 4 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 4 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 4 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 4 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Offside Front Steering rack gaiter insecure |2.2.D.2d| | 4 |
| Offside Front Position lamp not working |4.2.1 |a|| | 4 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 4 |
| rear parking |secondary| brakes imbalanced | 4 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 4 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 4 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Nearside Rear Parking brake inoperative on one side |1.4.1 |a|| | 3 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Offside Front Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 3 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 3 |
| Offside Rear Direction indicator incorrect colour |4.4.3 |a|| | 3 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 3 |
| Nearside Power steering component|s| leaking |2.3.3b| | 3 |
| Nearside Front Steering rack gaiter split |2.2.D.2d| | 3 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 3 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 3 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 3 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 3 |
| Rear fog lamp not working |1.3.2b| | 3 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 3 |
| Nearside Headlamp aim beam image kick up to the offside |1.8| | 3 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 3 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Indicator switch faulty |1.4.A.1| | 3 |
| Horn not working (7.7 (a)) | 3 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 3 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 3 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 3 |