| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 9993 |
| Windscreen wiper does not clear the windscreen effectively | 7933 |
| Headlamp aim out of alignment | 7450 |
| Brake pipe excessively corroded | 5938 |
| Brakes imbalanced across an axle | 1848 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 1454 |
| Front brake disc in such a condition that it is seriously weakened | 1419 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 1406 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 1324 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1277 |
| Rear brake binding | 1268 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 1236 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 1225 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1189 |
| Offside Stop lamp not working |1.2.1b| | 1171 |
| Nearside Stop lamp not working |1.2.1b| | 1088 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 1037 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 979 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 752 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 745 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 690 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 658 |
| Parking brake: efficiency below requirements |3.7.B.7| | 651 |
| Registration plate issues | 643 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 574 |
| Nearside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 513 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 505 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 492 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 486 |
| Offside Rear Stop lamp not working |1.2.1b| | 465 |
| Horn not working |1.6.2a| | 462 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 451 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 447 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 441 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 434 |
| Rear parking brake recording little or no effort | 418 |
| Nearside Rear Stop lamp not working |1.2.1b| | 413 |
| Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 411 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 410 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 400 |
| Offside Front Position lamp not working |4.2.1 |a|| | 395 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 393 |
| Emissions not tested (8.2.1.2 (d)) | 391 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 389 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 376 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 352 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 350 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 348 |
| Windscreen washer not working | 341 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 332 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 321 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 316 |
| Hazard warning switch inoperative (4.4.2 (a) (ii)) | 310 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 308 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 308 |
| Hazard warning switch faulty |1.4.B.1d| | 300 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 295 |
| Parking brake lever has no reserve travel |3.1.6b| | 270 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 257 |
| Anti-lock braking system warning lamp indicates an ABS fault | 257 |
| Front brake excessively fluctuating | 256 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 251 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 250 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 244 |
| Horn not working (7.7 (a) (ii)) | 239 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 235 |
| Rear Exhaust system not adequately supported |7.1.1| | 234 |
| Nearside Rear Service brake excessively binding |1.2.1 |f|| | 231 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 230 |
| Front brake application uneven | 225 |
| Horn not working (7.7 (a)) | 225 |
| Nearside Front Road wheel bead rim badly distorted |4.2.A.1a| | 225 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 221 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 216 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 213 |
| Indicator switch faulty |1.4.A.1| | 209 |
| Exhaust emissions likely to be affected by an exhaust leak (8.2.1.1 (b)) | 208 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 202 |
| Nearside Rear Wheel bearing rough when rotated |5.1.3 |b| |i|| | 196 |
| Windscreen wiper blade insecure | 194 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 194 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 193 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 185 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 184 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 182 |
| Hazard warning lamps inoperative |1.4.B.1b| | 178 |