| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 2299 |
| Registration plate lamp issues | 1669 |
| Headlamp aim out of alignment | 1533 |
| Brakes imbalanced across an axle | 685 |
| Parking brake: efficiency below requirements |3.7.B.7| | 674 |
| Brake pipe excessively corroded | 583 |
| Registration plate issues | 527 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 500 |
| Parking brake lever has no reserve travel |3.1.6b| | 427 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 379 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 373 |
| Rear parking brake recording little or no effort | 362 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 336 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 335 |
| Nearside Stop lamp not working |1.2.1b| | 332 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 320 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 254 |
| Brake hose excessively deteriorated | 244 |
| Offside Stop lamp not working |1.2.1b| | 226 |
| Rear brake binding | 214 |
| Front brake application uneven | 203 |
| Offside front brake binding |3.7.B.1| | 192 |
| Front brake disc in such a condition that it is seriously weakened | 170 |
| Battery insecure |1.9.1| | 168 |
| Nearside Rear Stop lamp not working |1.2.1b| | 160 |
| Nearside front brake binding |3.7.B.1| | 158 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 138 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 137 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 129 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 123 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 123 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 122 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 121 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 118 |
| Offside Rear Stop lamp not working |1.2.1b| | 99 |
| Mechanical brake component has restricted free movement | 99 |
| Anti-lock braking system warning lamp indicates an ABS fault | 98 |
| Rear brake disc in such a condition that it is seriously weakened | 98 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 95 |
| Offside Front front brake binding |3.7.B.1| | 91 |
| Nearside Front front brake binding |3.7.B.1| | 88 |
| Centre Stop lamp not working |1.2.1b| | 87 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 82 |
| Windscreen wiper blade insecure | 80 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 77 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 73 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 70 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 69 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 69 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 68 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 64 |
| Windscreen has damage | 62 |
| Windscreen washer not working | 61 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 60 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 59 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 57 |
| Front brake excessively fluctuating | 54 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 53 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 53 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 52 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 51 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 50 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 50 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 49 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 49 |
| Offside Headlamp has a product on the lens so that the light output is severely reduced |1.7.5a| | 49 |
| Nearside Headlamp has a product on the lens so that the light output is severely reduced |1.7.5a| | 48 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 47 |
| Offside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 47 |
| Service brake: efficiency below requirements |3.7.B.7| | 46 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 45 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine (8.2.2.2 (b)) | 45 |
| Rear brake application uneven | 44 |
| Nearside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 44 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 43 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 43 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 42 |
| Offside Headlamp insecure |1.7.3| | 41 |
| Offside Rear fog lamp not working |1.3.2b| | 40 |
| Rear Mechanical brake component has restricted free movement | 39 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 38 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 38 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 37 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 37 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 37 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 36 |
| Offside Front Service brake excessively binding |1.2.1 |f|| | 36 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 36 |
| Offside Headlamp not working on main beam |1.7.5a| | 35 |
| Nearside Headlamp insecure |1.7.3| | 35 |
| Nearside Front Service brake excessively binding |1.2.1 |f|| | 35 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 35 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 35 |
| Offside Front Headlamp insecure |1.7.3| | 34 |
| Stop lamp not working |1.2.1b| | 33 |
| Horn not working |1.6.2a| | 33 |
| Exhaust emissions test not completed because smoke levels are significantly in excess of the specified limit values (8.2.2.2 (f)) | 33 |