| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 962 |
| Brake pipe excessively corroded | 840 |
| Windscreen wiper does not clear the windscreen effectively | 721 |
| Registration plate lamp issues | 654 |
| Service brake: efficiency below requirements |3.7.B.7| | 553 |
| Brakes imbalanced across an axle | 322 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 285 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 259 |
| Horn not working |1.6.2a| | 251 |
| Registration plate issues | 250 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 205 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 196 |
| Offside Rear fog lamp not working |1.3.2b| | 187 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 186 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 171 |
| Emissions not tested |7.0| | 124 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 106 |
| Offside Stop lamp not working |1.2.1b| | 101 |
| Nearside Stop lamp not working |1.2.1b| | 99 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 98 |
| Rear parking brake recording little or no effort | 95 |
| Parking brake: efficiency below requirements |3.7.B.7| | 93 |
| Rear fog lamp not working |1.3.2b| | 87 |
| Rear brake application uneven | 85 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 81 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 67 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 66 |
| Brake load sensing valve linkage seized |3.6.E.3| | 64 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 62 |
| Rear Exhaust has a part missing |7.1.1a| | 61 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 61 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 51 |
| Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 51 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 49 |
| Steering column top bearing excessively worn |2.1.2c| | 48 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 47 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 46 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 46 |
| Brake load sensing valve seized |3.6.E.3| | 44 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 43 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 42 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 42 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 42 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 42 |
| Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 41 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 41 |
| Offside Headlamp not working on main beam |1.7.5a| | 40 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 40 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 40 |
| Rear Brake load sensing valve linkage seized |3.6.E.3| | 39 |
| Nearside Rear Leaf spring fractured |2.4.B.1a| | 37 |
| Brake hose excessively deteriorated | 37 |
| Rear brake binding | 37 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 37 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 36 |
| Offside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 35 |
| Fuel tank leaking |7.2.3| | 34 |
| Rear Rear fog lamp not working |1.3.2b| | 33 |
| Offside Rear Leaf spring fractured |2.4.B.1a| | 33 |
| Windscreen washer not working | 32 |
| Nearside Headlamp insecure |1.7.3| | 32 |
| Windscreen has damage | 31 |
| Nearside Headlamp not working on main beam |1.7.5a| | 31 |
| Rear Exhaust system not adequately supported |7.1.1| | 31 |
| Nearside Rear Stop lamp not working |1.2.1b| | 31 |
| Offside Rear Stop lamp not working |1.2.1b| | 30 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 30 |
| rear brake recording little or no effort |3.7.B.5a| | 30 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 29 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 29 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 28 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 25 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 25 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 23 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 23 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 23 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 23 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 23 |
| Exhaust has a part missing |7.1.1a| | 22 |
| Brake pedal spongy |3.3.B.1b| | 22 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 21 |
| Rear fog lamp tell tale not working |1.3.1b| | 21 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 20 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 20 |
| Brake load sensing valve linkage defective and function impaired |3.6.E.3| | 20 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 19 |
| Offside Front front brake binding |3.7.B.1| | 19 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 19 |
| Rear rear brake recording little or no effort |3.7.B.5a| | 19 |
| Battery insecure |1.9.1| | 19 |
| Offside Rear passenger door cannot be opened from outside the vehicle |6.2.B.1c| | 19 |
| Front brake application uneven | 19 |
| Offside Rear Service brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 18 |
| Exhaust tailpipe not capable of allowing the emission probe to be inserted |7.3.D.1| | 18 |
| Exhaust system not adequately supported |7.1.1| | 18 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 16 |
| Offside front brake binding |3.7.B.1| | 16 |
| Offside Headlamp insecure |1.7.3| | 16 |
| Nearside Front front brake binding |3.7.B.1| | 16 |
| Horn not working (7.7 (a) (ii)) | 16 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 16 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 15 |
| Horn not loud enough to be heard by another road user |1.6.2b| | 15 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 15 |
| Front Direction indicator incorrect colour |1.4.A.2f| | 15 |
| Brake performance not tested |3.7.A.1| | 15 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 15 |
| Nearside front brake binding |3.7.B.1| | 15 |
| Front passenger door cannot be opened from inside the vehicle |6.2.B.1b| | 15 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 15 |
| Nearside Rear position lamp|s| incorrect colour |1.1.A.3e| | 15 |
| Direction indicator incorrect colour |1.4.A.2f| | 14 |
| Nearside Rear Service brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 14 |
| Nearside Front Direction indicator incomplete |1.5.A1b| | 14 |
| Brake pedal has insufficient reserve movement |3.3.A.5| | 14 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 14 |
| Windscreen wiper blade insecure | 14 |
| Horn not working (7.7 (a)) | 14 |
| Centre Exhaust system not adequately supported |7.1.1| | 13 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 13 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 13 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 13 |
| Brake fluid warning lamp illuminated |3.6.G.2| | 13 |
| Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 13 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 13 |
| Nearside Rear passenger door cannot be opened from outside the vehicle |6.2.B.1c| | 13 |
| Offside Obligatory mirror insecure |8.1.1| | 13 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 12 |
| Spare wheel carrier insecure |6.4.2| | 12 |
| Brake pedal anti-slip provision incomplete |3.3.A.1b| | 12 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 12 |
| Offside Rear position lamp|s| insecure |1.1.A.3a| | 12 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 12 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 12 |
| Rear Brake load sensing valve seized |3.6.E.3| | 12 |
| Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 12 |
| Offside Front Direction indicator not working |1.4.A.2c| | 12 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 12 |