| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 147 |
| Registration plate lamp issues | 125 |
| Windscreen wiper does not clear the windscreen effectively | 76 |
| Brake hose excessively deteriorated | 59 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 56 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 53 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 47 |
| Exhaust emits an excessive level of metered smoke |7.4.B.3a| | 42 |
| Centre Stop lamp not working |1.2.1b| | 39 |
| Parking brake lever has no reserve travel |3.1.6b| | 36 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 33 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 26 |
| Brakes imbalanced across an axle | 26 |
| Parking brake: efficiency below requirements |3.7.B.7| | 25 |
| Anti-lock braking system warning lamp indicates an ABS fault | 23 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 17 |
| Offside Front Position lamp not working |4.2.1 |a|| | 16 |
| Rear brake disc in such a condition that it is seriously weakened | 16 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 15 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 15 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 14 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 13 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 13 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 13 |
| Rear brake binding | 13 |
| Registration plate issues | 13 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 12 |
| Exhaust emissions exceed default limit of 1.5m-1 (8.2.2.2 (b)) | 12 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 12 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 11 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 11 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 11 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 10 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 10 |
| Offside Front Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 10 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 10 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 10 |
| Nearside Stop lamp not working |1.2.1b| | 10 |
| Exhaust emissions exceed default limit of 1.5m-1 |8.2.2.2 |b|| | 10 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 9 |
| Front brake disc in such a condition that it is seriously weakened | 9 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 9 |
| Stop lamp not working |1.2.1b| | 9 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 9 |
| Front brake application uneven | 8 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 8 |
| Offside Rear fog lamp not working |1.3.2b| | 8 |
| Central Stop lamp not working |1.2.1b| | 8 |
| Rear parking brake recording little or no effort | 8 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 8 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 7 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 7 |
| Nearside Front Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 7 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 7 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 7 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 7 |
| Central Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Offside Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 6 |
| Nearside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 6 |
| Nearside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 5 |
| Offside front brake binding |3.7.B.1| | 5 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 5 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 5 |
| Front position lamp|s| not working |1.1.A.3b| | 5 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 5 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 5 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 5 |
| Service brake: efficiency below requirements |3.7.B.7| | 5 |
| Rear fog lamp not working |1.3.2b| | 5 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 5 |
| Centre Rear Stop lamp not working |1.2.1b| | 5 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 5 |
| Exhaust emits excessive smoke or vapour likely to obscure the vision of other road users |8.2.2.2 |c|| | 4 |
| Exhaust emissions test aborted because smoke levels are significantly in excess of the specified limit values |8.2.2.2 |f|| | 4 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 4 |
| Electronic stability control warning lamp indicates a fault |7.12 |e|| | 4 |
| Offside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 4 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine (8.2.2.2 (b)) | 4 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 4 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 4 |
| Offside Front Lower Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 4 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 4 |
| Windscreen washer not working | 4 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 4 |
| Offside Headlamp insecure |1.7.3| | 4 |
| Fuel system component insecure |7.2.1| | 4 |
| Brake fluid warning lamp illuminated |3.6.G.2| | 4 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 4 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 4 |
| Brake pedal spongy |3.3.B.1b| | 4 |
| Nearside Front Lower Suspension component ball joint excessively worn |5.3.4 |a| |i|| | 4 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 4 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 4 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 4 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine |8.2.2.2 |b|| | 3 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Offside Front Suspension arm ball joint likely to become detached (5.3.4 (a) (ii)) | 3 |
| Nearside front brake binding |3.7.B.1| | 3 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 3 |
| Horn not working |1.6.2a| | 3 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 3 |
| Brake fluid contaminated |1.8 |a|| | 3 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 3 |
| Nearside Rear Service brake excessively binding |1.2.1 |f|| | 3 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 3 |
| Exhaust emits excessive smoke or vapour likely to obscure the vision of other road users (8.2.2.2 (c)) | 3 |
| Rear brake application uneven | 3 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 3 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 3 |
| Nearside Rear Sub-frame corroded and seriously weakened (5.3.3 (b) (i)) | 3 |
| Rear Stop lamp not working |1.2.1b| | 3 |
| Offside Front Lower Suspension component ball joint excessively worn |5.3.4 |a| |i|| | 3 |
| Nearside Front Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Brake fluid contaminated (1.8 (a)) | 3 |
| Nearside Rear Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn |5.3.4 |a| |i|| | 3 |
| Offside Rear Anti-roll bar linkage ball joint excessively worn |5.3.4 |a| |i|| | 3 |
| Fuel system component leaking |7.2.3| | 3 |
| Offside Stop lamp not working |1.2.1b| | 3 |
| Nearside Front Lower Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |