| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 5350 |
| Headlamp aim out of alignment | 4096 |
| Windscreen wiper does not clear the windscreen effectively | 3819 |
| Brakes imbalanced across an axle | 1227 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 986 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 815 |
| Service brake: efficiency below requirements |3.7.B.7| | 688 |
| Brake pipe excessively corroded | 661 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 636 |
| Centre Stop lamp not working |1.2.1b| | 533 |
| Front brake disc in such a condition that it is seriously weakened | 528 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 524 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 511 |
| Registration plate issues | 493 |
| Parking brake: efficiency below requirements |3.7.B.7| | 474 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 465 |
| Parking brake lever has no reserve travel |3.1.6b| | 462 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 462 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 453 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 452 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 449 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 446 |
| Windscreen has damage | 370 |
| Rear brake binding | 354 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 310 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 309 |
| Rear parking brake recording little or no effort | 293 |
| Anti-lock braking system warning lamp indicates an ABS fault | 272 |
| Nearside Rear Shock absorber has an excessively worn bush |2.7.4| | 254 |
| Offside Rear Shock absorber has an excessively worn bush |2.7.4| | 240 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 235 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 235 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 235 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 229 |
| Windscreen washer not working | 228 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 227 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 227 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 223 |
| Headlamp switch faulty |1.7.1| | 220 |
| Rear brake application uneven | 220 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 220 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 217 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 211 |
| Offside Stop lamp not working |1.2.1b| | 209 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 208 |
| Nearside Stop lamp not working |1.2.1b| | 206 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 206 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 206 |
| Nearside Headlamp not working on main beam |1.7.5a| | 205 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 203 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 198 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 190 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 189 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 187 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 187 |
| Offside Headlamp not working on main beam |1.7.5a| | 180 |
| Battery insecure |1.9.1| | 179 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 177 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 173 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 168 |
| Emissions not tested |7.0| | 161 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 157 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 156 |
| Offside Rear Upper Shock absorber has an excessively worn bush |2.7.4| | 152 |
| Nearside Rear Upper Shock absorber has an excessively worn bush |2.7.4| | 152 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 152 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 151 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 147 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 146 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 145 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 140 |
| Windscreen wiper blade insecure | 140 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 128 |
| Front brake application uneven | 123 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 122 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 122 |
| Fuel system component leaking |7.2.3| | 122 |
| Stop lamp not working |1.2.1b| | 119 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 118 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 113 |
| Nearside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 113 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 113 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 109 |
| Offside Rear fog lamp not working |1.3.2b| | 108 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 107 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 102 |
| Centre Rear Stop lamp not working |1.2.1b| | 100 |
| Rear fog lamp not working |1.3.2b| | 98 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 94 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 92 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 91 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 91 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 89 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 88 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 88 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 88 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 87 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 87 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 84 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 84 |
| Exhaust emits an excessive level of metered smoke for a non-turbo charged engine |7.4.B.3b| | 83 |
| Offside Rear Stop lamp not working |1.2.1b| | 83 |
| Power steering fluid level below minimum |2.3.1| | 82 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 81 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 81 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 80 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine (8.2.2.2 (b)) | 79 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 79 |
| Horn not working |1.6.2a| | 77 |
| Front brake excessively fluctuating | 76 |
| Spare wheel carrier insecure |6.4.2| | 76 |
| Parking brake lever insecure |3.1.3b| | 76 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 75 |
| Nearside Headlamp insecure |1.7.3| | 74 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 73 |
| Offside Headlamp insecure |1.7.3| | 72 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 72 |
| Rear Exhaust system not adequately supported |7.1.1| | 71 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 71 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 71 |
| Offside Rear Direction indicator incorrect colour |4.4.3 |a|| | 69 |
| Nearside Rear Stop lamp not working |1.2.1b| | 69 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 68 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 68 |
| Nearside Rear Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2| | 67 |
| Offside Headlamp lens seriously defective (4.1.1 (b) (ii)) | 67 |