| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 8723 |
| Windscreen wiper does not clear the windscreen effectively | 6919 |
| Headlamp aim out of alignment | 6464 |
| Brake pipe excessively corroded | 6156 |
| Brakes imbalanced across an axle | 2310 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 1731 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 1640 |
| Front brake disc in such a condition that it is seriously weakened | 1484 |
| Offside Stop lamp not working |1.2.1b| | 1417 |
| Nearside Stop lamp not working |1.2.1b| | 1329 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 1259 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 1182 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 1172 |
| Rear brake binding | 1143 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 1086 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 809 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 795 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 790 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 756 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 750 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 603 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 591 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 561 |
| Registration plate issues | 560 |
| Offside Rear Stop lamp not working |1.2.1b| | 516 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 496 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 476 |
| Nearside Rear Stop lamp not working |1.2.1b| | 464 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 435 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 434 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 420 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 408 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 408 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 406 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 405 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 401 |
| Offside Front Position lamp not working |4.2.1 |a|| | 401 |
| Parking brake: efficiency below requirements |3.7.B.7| | 398 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 378 |
| Nearside Rear Service brake excessively binding |1.2.1 |f|| | 375 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 374 |
| Windscreen washer not working | 365 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 347 |
| Nearside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 338 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 330 |
| Emissions not tested (8.2.1.2 (d)) | 327 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 319 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 319 |
| Rear parking brake recording little or no effort | 304 |
| Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 297 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 296 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 294 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 279 |
| Front brake excessively fluctuating | 271 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 266 |
| Nearside Front Road wheel bead rim badly distorted |4.2.A.1a| | 259 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 259 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 255 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 253 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 251 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 248 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 238 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 238 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 230 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 214 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 214 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 212 |
| Rear Exhaust system not adequately supported |7.1.1| | 205 |
| Anti-lock braking system warning lamp indicates an ABS fault | 200 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 200 |
| Parking brake lever has no reserve travel |3.1.6b| | 189 |
| Front brake application uneven | 187 |
| Windscreen wiper blade insecure | 185 |
| Exhaust emissions likely to be affected by an exhaust leak (8.2.1.1 (b)) | 184 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 183 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 179 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 178 |
| Nearside Rear Wheel bearing rough when rotated |5.1.3 |b| |i|| | 167 |
| Rear brake application uneven | 166 |
| Horn not working |1.6.2a| | 160 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 159 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 159 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 157 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 156 |
| All direction indicators not working (4.4.1 (a) (ii)) | 155 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 153 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 151 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 151 |