| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 793 |
| Headlamp aim out of alignment | 545 |
| Windscreen wiper does not clear the windscreen effectively | 304 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 261 |
| Brake hose excessively deteriorated | 252 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 235 |
| Parking brake: efficiency below requirements |3.7.B.7| | 228 |
| Rear parking brake recording little or no effort | 192 |
| Registration plate issues | 127 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 81 |
| Nearside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 78 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 76 |
| Parking brake lever has no reserve travel |3.1.6b| | 76 |
| Brakes imbalanced across an axle | 76 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 75 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 73 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 73 |
| Nearside Stop lamp not working |1.2.1b| | 71 |
| Anti-lock braking system warning lamp indicates an ABS fault | 70 |
| Offside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 69 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 68 |
| Offside Stop lamp not working |1.2.1b| | 67 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 58 |
| Rear Exhaust system not adequately supported |7.1.1| | 53 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 52 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 51 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 48 |
| Offside Rear fog lamp not working |1.3.2b| | 47 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 46 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 46 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 46 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 45 |
| Front brake disc in such a condition that it is seriously weakened | 42 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 42 |
| Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 41 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 39 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 39 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 38 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 38 |
| Rear brake binding | 38 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 38 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 36 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 35 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 35 |
| Rear fog lamp not working |1.3.2b| | 34 |
| Centre Exhaust system not adequately supported |7.1.1| | 32 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 30 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 30 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 28 |
| Exhaust system not adequately supported |7.1.1| | 28 |
| Rear brake disc in such a condition that it is seriously weakened | 27 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 27 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 26 |
| Offside Rear Stop lamp not working |1.2.1b| | 25 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 25 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 25 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 25 |
| Nearside Rear Stop lamp not working |1.2.1b| | 24 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 24 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 23 |
| Front brake application uneven | 23 |
| Offside Front Direction indicator not working |1.4.A.2c| | 22 |
| Rear brake application uneven | 22 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 22 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 22 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 21 |
| Brake hose damaged | 20 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 20 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 19 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 19 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 19 |
| Offside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 19 |
| Nearside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 18 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 18 |
| Nearside Rear Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 18 |
| Nearside Front position lamp|s| not in good working order |function impaired| |1.1.4a| | 18 |
| Nearside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 18 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 18 |
| Offside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 17 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 17 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 17 |
| Nearside front brake binding |3.7.B.1| | 16 |
| Offside Front position lamp|s| not in good working order |function impaired| |1.1.4a| | 16 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 16 |
| Nearside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 15 |
| Front position lamp|s| not working |1.1.A.3b| | 15 |
| Nearside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 15 |
| Windscreen has damage | 15 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 15 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 15 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 14 |
| Centre Rear Exhaust system not adequately supported |7.1.1| | 14 |
| Main beam `tell-tale` not working |1.7.4c| | 13 |
| Offside Rear Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 13 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 13 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 13 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 13 |
| Offside Front Steering arm has relative movement at its fixings |2.2.B.1h| | 13 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 13 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 13 |
| Emissions not tested |7.0| | 12 |
| Offside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 12 |
| Offside Front Position lamp not working |4.2.1 |a|| | 12 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 12 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 12 |
| Offside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 12 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 12 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 12 |
| Nearside Rear Anti-roll bar rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 11 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 11 |
| Front brake excessively fluctuating | 11 |
| Windscreen washer not working | 11 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 11 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 11 |
| Offside Headlamp not working on main beam |1.7.5a| | 11 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 10 |
| Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 10 |
| Offside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 10 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 10 |
| Offside Front position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 10 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 10 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 10 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 10 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 10 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 10 |
| Nearside Upper Rear position lamp|s| not working |1.1.A.3b| | 9 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 9 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 9 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 9 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 9 |
| Rear fog lamp tell tale not working |1.3.1b| | 9 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 9 |
| Nearside Front suspension has excessive movement at a wishbone pin or bush |2.5.A.1c| | 9 |
| Offside front brake binding |3.7.B.1| | 9 |
| Horn not working |1.6.2a| | 9 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 9 |
| Nearside Parking brake inoperative on one side |1.4.1 |a|| | 9 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 9 |