| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 962 |
| Headlamp aim out of alignment | 776 |
| Windscreen wiper does not clear the windscreen effectively | 632 |
| Service brake: efficiency below requirements |3.7.B.7| | 243 |
| Brakes imbalanced across an axle | 208 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 196 |
| Brake pipe excessively corroded | 192 |
| Registration plate issues | 182 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 168 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 166 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 135 |
| Front brake disc in such a condition that it is seriously weakened | 118 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 116 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 115 |
| Windscreen has damage | 109 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 109 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 107 |
| Centre Stop lamp not working |1.2.1b| | 106 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 105 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 95 |
| Parking brake: efficiency below requirements |3.7.B.7| | 93 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 89 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 84 |
| Exhaust emits an excessive level of metered smoke for a non-turbo charged engine |7.4.B.3b| | 84 |
| Offside Stop lamp not working |1.2.1b| | 84 |
| Nearside Stop lamp not working |1.2.1b| | 68 |
| Parking brake lever has no reserve travel |3.1.6b| | 66 |
| Rear parking brake recording little or no effort | 64 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 61 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 56 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 56 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 54 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 48 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 48 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 46 |
| Emissions not tested |7.0| | 45 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 44 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 44 |
| Rear Exhaust system not adequately supported |7.1.1| | 43 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 42 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 42 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 42 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 42 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 40 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 39 |
| Nearside Rear Stop lamp not working |1.2.1b| | 38 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 38 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 38 |
| Windscreen wiper blade insecure | 35 |
| Offside Rear fog lamp not working |1.3.2b| | 34 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 31 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 31 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 31 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 30 |
| Fuel system component leaking |7.2.3| | 29 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 28 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 27 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 27 |
| Spare wheel carrier insecure |6.4.2| | 27 |
| All position lamps not working |1.1.A.3b| | 27 |
| Rear fog lamp not working |1.3.2b| | 25 |
| Front brake application uneven | 25 |
| Offside Rear Stop lamp not working |1.2.1b| | 25 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 25 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 25 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 25 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 24 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 23 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 23 |
| Stop lamp remains on when the brakes are released | 23 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 22 |
| Nearside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 21 |
| Rear brake application uneven | 21 |
| Offside Headlamp insecure |1.7.3| | 21 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 21 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 21 |
| Stop lamp not working |1.2.1b| | 21 |
| Nearside Front Coil spring not correctly located |2.4.C.2| | 21 |
| Battery insecure |1.9.1| | 21 |
| Nearside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 21 |
| Windscreen washer not working | 21 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 21 |
| Horn not working |1.6.2a| | 20 |
| rear brake recording little or no effort |3.7.B.5a| | 20 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 20 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 19 |
| Brake load sensing valve linkage obviously incorrectly adjusted |3.6.E.3| | 19 |
| Brake load sensing valve linkage seized |3.6.E.3| | 18 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 17 |
| Nearside Headlamp not working on main beam |1.7.5a| | 17 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 17 |
| Front Exhaust has part of the system excessively deteriorated |7.1.1a| | 17 |
| Parking brake lever, pawl mechanism pivots or their associated mountings are insecure |3.1.4b| | 17 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 17 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 17 |
| Brake load sensing valve seized |3.6.E.3| | 16 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 16 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 16 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 16 |
| Offside front brake juddering severely |3.7.A.2b| | 16 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 16 |
| Exhaust system not adequately supported |7.1.1| | 16 |
| Offside front brake binding |3.7.B.1| | 15 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 15 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 15 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 15 |
| Offside Headlamp not working on main beam |1.7.5a| | 15 |
| Offside Front Coil spring not correctly located |2.4.C.2| | 15 |
| Power steering fluid level below minimum |2.3.1| | 14 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 14 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 14 |
| Exhaust tailpipe not capable of allowing the emission probe to be inserted |7.4.B.1| | 14 |
| Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 13 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 13 |
| Nearside Headlamp insecure |1.7.3| | 13 |
| Brake pedal anti-slip provision worn smooth |3.3.A.1b| | 13 |
| Centre Rear Stop lamp not working |1.2.1b| | 13 |
| Offside Front brake disc excessively pitted |3.5.1h| | 13 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 13 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 13 |
| Offside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 12 |
| Offside Front coil spring broken |2.4.C.1a| | 12 |
| Centre Upper Stop lamp not working |1.2.1b| | 12 |
| Offside Rear fog lamp emits a light other than red |1.3.2e| | 12 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 12 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 11 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 11 |
| Front position lamp|s| not working |1.1.A.3b| | 11 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 11 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 11 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 11 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 11 |
| Offside Rear Service brake effort inadequate at a wheel (1.2.1 (a) (i)) | 11 |