| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 626 |
| Windscreen wiper does not clear the windscreen effectively | 444 |
| Headlamp aim out of alignment | 394 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 86 |
| Brake pipe excessively corroded | 86 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 85 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 79 |
| Brakes imbalanced across an axle | 70 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 67 |
| Anti-lock braking system warning lamp indicates an ABS fault | 66 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 60 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 60 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 57 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 57 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 54 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 53 |
| Front brake disc in such a condition that it is seriously weakened | 51 |
| Offside Front coil spring broken |2.4.C.1a| | 49 |
| Registration plate issues | 49 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 46 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 46 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 45 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 42 |
| Parking brake: efficiency below requirements |3.7.B.7| | 40 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 40 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 39 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 39 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 39 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 36 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 34 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 33 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 31 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 31 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 30 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 30 |
| Parking brake lever has no reserve travel |3.1.6b| | 28 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 28 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 28 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 28 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 28 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 28 |
| Rear parking brake recording little or no effort | 27 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 26 |
| Battery insecure |1.9.1| | 26 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 26 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 26 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 25 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 25 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 25 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 24 |
| Windscreen wiper blade insecure | 23 |
| Offside Front Coil spring fractured or broken |5.3.1 |b| |i|| | 22 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 22 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 22 |
| Front brake excessively fluctuating | 21 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 21 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 21 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 21 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 21 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 21 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 20 |
| Centre Stop lamp not working |1.2.1b| | 20 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 20 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 19 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 18 |
| Brake hose excessively deteriorated | 18 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 18 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 17 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 17 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 17 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 17 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 16 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 16 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 15 |
| Nearside Front coil spring broken |2.4.C.1a| | 15 |
| Windscreen washer not working | 15 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 15 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 14 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 14 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 14 |
| Nearside Front Coil spring fractured or broken |5.3.1 |b| |i|| | 13 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 13 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 13 |
| Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 13 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine (8.2.2.2 (b)) | 13 |
| Direction indicators incorrect colour |1.4.A.2f| | 12 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 12 |
| Nearside Stop lamp not working |1.2.1b| | 12 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 12 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 12 |
| Offside Front Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 11 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 11 |
| Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 11 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 11 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 11 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 10 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 10 |
| Offside Front Position lamp not working |4.2.1 |a|| | 10 |
| Nearside Front Road wheel bead rim badly distorted |4.2.A.1a| | 10 |
| Nearside Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (c)) | 10 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 10 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 10 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 9 |
| Front brake application uneven | 9 |
| Offside Stop lamp not working |1.2.1b| | 9 |
| Nearside Headlamp insecure |1.7.3| | 9 |
| Offside Front Lower Suspension arm rubber bush bonding deteriorated resulting in excessive movement |2.4.G.2| | 9 |
| Offside Headlamp insecure |1.7.3| | 9 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 9 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 9 |
| Nearside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 9 |
| Nearside Front Upper Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 9 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine |8.2.2.2 |b|| | 8 |
| Offside Front Headlamp insecure |1.7.3| | 8 |
| Offside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 8 |
| Offside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 8 |
| Offside 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| | 8 |
| 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| | 8 |
| Exhaust emissions exceed manufacturer`s specified limit |8.2.2.2 |a|| | 8 |
| Exhaust system not adequately supported |7.1.1| | 8 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 8 |
| Exhaust emissions test not completed because smoke levels are significantly in excess of the specified limit values (8.2.2.2 (f)) | 8 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 8 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 8 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 8 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 8 |