| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 17754 |
| Headlamp aim out of alignment | 12243 |
| Registration plate lamp issues | 9549 |
| Brakes imbalanced across an axle | 4763 |
| Registration plate issues | 3259 |
| Brake pipe excessively corroded | 2947 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 2695 |
| Parking brake lever has no reserve travel |3.1.6b| | 2403 |
| Parking brake: efficiency below requirements |3.7.B.7| | 2243 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2216 |
| Nearside Stop lamp not working |1.2.1b| | 2138 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2114 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 2086 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1544 |
| Rear parking brake recording little or no effort | 1470 |
| Brake hose excessively deteriorated | 1469 |
| Rear brake binding | 1466 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1385 |
| Front brake application uneven | 1363 |
| Front brake disc in such a condition that it is seriously weakened | 1355 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 1323 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 1209 |
| Offside Stop lamp not working |1.2.1b| | 1168 |
| Offside front brake binding |3.7.B.1| | 1089 |
| Nearside front brake binding |3.7.B.1| | 1063 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1055 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 1007 |
| Battery insecure |1.9.1| | 965 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 964 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 881 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 879 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 853 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 852 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 812 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 714 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 712 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 696 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 694 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 690 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 678 |
| Offside Rear Stop lamp not working |1.2.1b| | 669 |
| Offside Front front brake binding |3.7.B.1| | 646 |
| Centre Stop lamp not working |1.2.1b| | 646 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 601 |
| Windscreen wiper blade insecure | 589 |
| Rear brake disc in such a condition that it is seriously weakened | 579 |
| Mechanical brake component has restricted free movement | 551 |
| Anti-lock braking system warning lamp indicates an ABS fault | 542 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 530 |
| Nearside Front front brake binding |3.7.B.1| | 528 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 511 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 508 |
| Windscreen washer not working | 492 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 449 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 424 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 414 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 403 |
| Offside Headlamp has a product on the lens so that the light output is severely reduced |1.7.5a| | 400 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 399 |
| Windscreen has damage | 392 |
| Nearside Headlamp has a product on the lens so that the light output is severely reduced |1.7.5a| | 391 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 391 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 389 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 382 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 382 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 381 |
| Offside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 360 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 354 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 351 |
| Nearside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 343 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 340 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 325 |
| Rear brake application uneven | 315 |
| Offside Headlamp insecure |1.7.3| | 310 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 303 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 303 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 301 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 291 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 283 |
| Nearside Headlamp insecure |1.7.3| | 282 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 272 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 258 |
| Horn not working |1.6.2a| | 252 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 248 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 244 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 243 |
| Front brake excessively fluctuating | 240 |
| Rear Mechanical brake component has restricted free movement | 237 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 233 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 229 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 225 |