| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 253 |
| Headlamp aim out of alignment | 251 |
| Windscreen wiper does not clear the windscreen effectively | 246 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 188 |
| Registration plate lamp issues | 143 |
| Brakes imbalanced across an axle | 138 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 118 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 103 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 101 |
| Horn not working (7.7 (a) (ii)) | 95 |
| Horn not working (7.7 (a)) | 86 |
| Windscreen washer not working | 63 |
| Horn not working |7.7 |a| |ii|| | 61 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 58 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 58 |
| Offside Front Coil spring fractured or broken |5.3.1 |b| |i|| | 57 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 55 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 53 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 51 |
| Front brake disc in such a condition that it is seriously weakened | 51 |
| Horn not working |1.6.2a| | 47 |
| Parking brake lever insecure |3.1.3b| | 45 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 45 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 40 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 38 |
| Nearside Front Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 38 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 37 |
| Registration plate issues | 37 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 36 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 34 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 34 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 34 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 33 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 32 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 30 |
| Offside Front Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 29 |
| Nearside Front Macpherson strut top bush or bearing has excessive wear or free play (5.3.4 (a) (i)) | 29 |
| Nearside Front Coil spring fractured or broken |5.3.1 |b| |i|| | 28 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 27 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 27 |
| Offside Front coil spring broken |2.4.C.1a| | 25 |
| Offside Front Anti-roll bar linkage fractured (5.3.3 (b) (ii)) | 24 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 24 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 23 |
| Nearside Rear Shock absorbers has a serious fluid leak | 23 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 22 |
| Nearside Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 19 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 19 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 19 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 18 |
| Front brake application uneven | 18 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 18 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 17 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 17 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 17 |
| Offside Rear Shock absorbers has a serious fluid leak | 17 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 16 |
| Nearside Front coil spring broken |2.4.C.1a| | 16 |
| Offside Front Macpherson strut top bush or bearing has excessive wear or free play (5.3.4 (a) (i)) | 15 |
| Offside Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 15 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 14 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 13 |
| Front brake excessively fluctuating | 13 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 12 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 12 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 12 |
| Nearside Front Service brake lagging in operation (1.2.1 (d)) | 12 |
| Parking brake lever defective so that it cannot be satisfactorily operated (1.1.6 (d)) | 12 |
| Nearside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 12 |
| Nearside Front Track rod end ball joint worn to the extent there is a serious risk of detachment (2.1.3 (b) (ii)) | 11 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 11 |
| Nearside Rear Direction indicator incorrect colour |4.4.3 |a|| | 11 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 11 |
| Parking brake lever, pawl mechanism pivots or their associated mountings are insecure |3.1.4b| | 11 |
| Brake lever pivot has excessive wear or free play (1.1.1 (b)) | 11 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 10 |
| Offside Front Anti-roll bar linkage insecurely attached (5.3.3 (a) (i)) | 10 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Nearside Front Anti-roll bar linkage fractured (5.3.3 (b) (ii)) | 10 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 9 |
| Emissions not tested (8.2.1.2 (d)) | 9 |
| Rear brake binding | 9 |
| Offside Front Position lamp not working |4.2.1 |a|| | 9 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 9 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 9 |
| Nearside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 9 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 9 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 9 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 9 |