| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 441 |
| Headlamp aim out of alignment | 408 |
| Registration plate lamp issues | 128 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 69 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 63 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 39 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 38 |
| Registration plate issues | 37 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 31 |
| Windscreen washer not working | 29 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 28 |
| Offside Front Shock absorbers has a serious fluid leak | 26 |
| Rear brake disc in such a condition that it is seriously weakened | 25 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 20 |
| Brakes imbalanced across an axle | 18 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 17 |
| Nearside Front Shock absorbers has a serious fluid leak | 16 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 16 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 12 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 12 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 12 |
| Brake fluid warning lamp illuminated |3.6.G.2| | 10 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 10 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 10 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 10 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 10 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 9 |
| Offside Front Position lamp not working |4.2.1 |a|| | 8 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 8 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 8 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 8 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 8 |
| Brake fluid warning lamp illuminated (3.6.G.2) | 8 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 7 |
| Anti-lock braking system warning lamp indicates an ABS fault | 7 |
| Rear brake binding | 7 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 7 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 7 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 7 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 7 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 6 |
| Offside Rear Direction indicator incorrect colour |4.4.3 |a|| | 6 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 6 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 6 |
| Windscreen wiper blade insecure | 6 |
| Nearside Front position lamp(s) not working (1.1.A.3b) | 6 |
| Nearside Front Road wheel fixing missing (5.2.1 (a) (i)) | 6 |
| Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b)) | 6 |
| Windscreen has damage | 5 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 5 |
| Nearside Rear Direction indicator incorrect colour |4.4.3 |a|| | 5 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 5 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 5 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 5 |
| Fuel cap/sealing device missing (6.1.3 (b) (i)) | 5 |
| Fuel cap/sealing device ineffective (6.1.3 (b) (i)) | 5 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 5 |
| Offside Rear Direction indicator incorrect colour (1.4.A.2f) | 5 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 5 |
| Offside Rear Service brake excessively fluctuating (1.2.1 (e)) | 5 |