| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 2175 |
| Windscreen wiper does not clear the windscreen effectively | 1620 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 897 |
| Registration plate lamp issues | 625 |
| Brakes imbalanced across an axle | 559 |
| Offside Stop lamp not working |1.2.1b| | 415 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 398 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 386 |
| Registration plate issues | 369 |
| Front brake disc in such a condition that it is seriously weakened | 343 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 324 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 289 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 287 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 263 |
| Horn not working |1.6.2a| | 225 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 203 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 203 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 195 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 193 |
| Brake pipe excessively corroded | 179 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 173 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 170 |
| Nearside Stop lamp not working |1.2.1b| | 167 |
| Parking brake: efficiency below requirements |3.7.B.7| | 166 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 155 |
| Rear brake binding | 155 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 155 |
| Offside Front brake disc excessively pitted |3.5.1h| | 152 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 151 |
| Offside Rear Stop lamp not working |1.2.1b| | 144 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 140 |
| Brake hose excessively deteriorated | 139 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 119 |
| Parking brake lever has no reserve travel |3.1.6b| | 117 |
| Front Exhaust system not adequately supported |7.1.1| | 116 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 115 |
| Service brake: efficiency below requirements |3.7.B.7| | 113 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 111 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 110 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 106 |
| Rear brake application uneven | 99 |
| Rear parking brake recording little or no effort | 99 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 98 |
| Hazard warning switch faulty |1.4.B.1d| | 97 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 97 |
| Emissions not tested |7.0| | 96 |
| Battery insecure |1.9.1| | 91 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 88 |
| Windscreen has damage | 84 |
| Offside Front coil spring broken |2.4.C.1a| | 84 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 84 |
| Nearside Rear Stop lamp not working |1.2.1b| | 82 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 82 |
| Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 81 |
| Exhaust system not adequately supported |7.1.1| | 78 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 77 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 75 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 75 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 73 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 72 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 72 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 70 |
| Offside Rear coil spring broken |2.4.C.1a| | 69 |
| Brake load sensing valve linkage seized |3.6.E.3| | 69 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 67 |
| Windscreen washer not working | 67 |
| Front brake excessively fluctuating | 66 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 66 |
| Windscreen wiper blade insecure | 66 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 65 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 64 |
| Offside Front Suspension arm rubber bush bonding deteriorated resulting in excessive movement |2.4.G.2| | 62 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 60 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 59 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 59 |
| Front brake disc excessively pitted |3.5.1h| | 58 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 57 |
| Front brake application uneven | 56 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 55 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 55 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 54 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 53 |
| Offside Rear Shock absorbers has a serious fluid leak | 52 |
| Offside Front coil spring incomplete |2.4.C.1a| | 52 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 51 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 50 |
| Brake servo vacuum pipe split |3.6.C.1b| | 50 |
| Nearside Front coil spring broken |2.4.C.1a| | 48 |
| Nearside Rear coil spring broken |2.4.C.1a| | 47 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 46 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 43 |
| Offside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 42 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 42 |
| Offside Rear fog lamp not working |1.3.2b| | 41 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 40 |
| Nearside Front Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 40 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 40 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 39 |
| Centre Exhaust system not adequately supported |7.1.1| | 39 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 39 |
| Nearside Rear Shock absorbers has a serious fluid leak | 38 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 37 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 36 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 35 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 35 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 34 |