| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 287 |
| Headlamp aim out of alignment | 251 |
| Registration plate lamp issues | 81 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 42 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 40 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 38 |
| Registration plate issues | 35 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 30 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 28 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 21 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 21 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 17 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 17 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 15 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 13 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 12 |
| Rear brake disc in such a condition that it is seriously weakened | 12 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 11 |
| Offside Front Shock absorbers has a serious fluid leak | 11 |
| Windscreen washer not working | 11 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 10 |
| Brakes imbalanced across an axle | 10 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 10 |
| Emissions not tested (8.2.1.2 (d)) | 9 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 8 |
| Anti-lock braking system warning lamp indicates an ABS fault | 8 |
| Offside Front Position lamp not working |4.2.1 |a|| | 8 |
| Brake fluid warning lamp illuminated |3.6.G.2| | 7 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive (7.3.D.3) | 7 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 7 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 7 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 7 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Brake fluid warning lamp illuminated (3.6.G.2) | 7 |
| Nearside Front Shock absorbers has a serious fluid leak | 6 |
| Central Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 6 |
| Windscreen wiper blade insecure | 6 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 5 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 5 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 5 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 5 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 5 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 5 |
| Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b)) | 4 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 4 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 4 |
| Front Exhaust has a major leak of exhaust gases flexi (6.1.2 (a)) | 4 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 4 |
| Rear fog lamp not working |1.3.2b| | 4 |
| Nearside Rear Upper Position lamp not working (4.2.1 (a) (ii)) | 4 |
| Nearside Rear Direction indicator incorrect colour |4.4.3 |a|| | 4 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 4 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 4 |
| Nearside Rear Stop lamp not working |1.2.1b| | 4 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 4 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 4 |
| Offside Front position lamp(s) not working (1.1.A.3b) | 4 |
| Windscreen has damage | 4 |
| Nearside Front Road wheel fixing missing (5.2.1 (a) (i)) | 4 |
| Exhaust emissions likely to be affected by an exhaust leak (8.2.1.1 (b)) | 4 |
| Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 4 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive (7.3.D.3) | 3 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits (7.3.D.3) | 3 |
| Rear brake binding | 3 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 3 |
| Front brake excessively fluctuating | 3 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 3 |
| Front brake disc in such a condition that it is seriously weakened | 3 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 3 |
| Offside Rear Direction indicator incorrect colour |4.4.3 |a|| | 3 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 3 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 3 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Offside Front Position lamp not working (4.2.1 (a)) | 3 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Nearside Front position lamp(s) not working (1.1.A.3b) | 3 |
| Offside Rear Direction indicator incorrect colour (1.4.A.2f) | 3 |
| Rear brake application uneven | 3 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 3 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 3 |