| Most common failures | No# failures |
|---|
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp aim out of alignment | 3 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 2 |
| Registration plate issues | 2 |
| Horn not working |1.6.2a| | 2 |
| Registration plate lamp issues | 2 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Front position lamp deteriorated and function impaired light flickers |1.1.1b| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Centre Front position lamp|s| missing |1.1.A.3a| | 1 |
| Nearside Rear reflector missing |1.5.1a| | 1 |
| Offside Rear reflector missing |1.5.1a| | 1 |
| Indicator tell tale missing |1.4.A.2a| | 1 |
| Hazard warning lamps inoperative |1.4.B.1b| | 1 |
| Hazard warning tell tale not working correctly |1.4.B.1e| | 1 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Nearside Obligatory mirror missing |8.1.1| | 1 |
| Offside Obligatory mirror missing |8.1.1| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Main beam `tell-tale` not working |1.7.4c| | 1 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Front Direction indicator insecure |1.4.A.2b| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |