| Most common failures | No# failures |
|---|
| Parking brake: efficiency below requirements |3.7.B.7| | 3606 |
| Rear parking brake recording little or no effort | 2315 |
| Headlamp aim out of alignment | 1669 |
| Windscreen wiper does not clear the windscreen effectively | 1583 |
| Service brake: efficiency below requirements |3.7.B.7| | 905 |
| Brake hose excessively deteriorated | 704 |
| Rear brake binding | 686 |
| Nearside Stop lamp not working |1.2.1b| | 681 |
| Offside Stop lamp not working |1.2.1b| | 651 |
| Brakes imbalanced across an axle | 631 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 610 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 581 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 568 |
| Brake pipe excessively corroded | 559 |
| Parking brake lever has no reserve travel |3.1.6b| | 522 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 514 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 490 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 485 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 483 |
| Nearside Side repeater not working |1.4.A.2c| | 458 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 449 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 440 |
| Registration plate lamp issues | 419 |
| Offside Side repeater not working |1.4.A.2c| | 374 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 362 |
| Emissions not tested |7.0| | 331 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 325 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 300 |
| Offside Rear Stop lamp not working |1.2.1b| | 285 |
| Nearside Rear Stop lamp not working |1.2.1b| | 282 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 266 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 245 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 245 |
| Rear brake application uneven | 233 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 230 |
| Registration plate issues | 228 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 220 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 194 |
| Nearside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 181 |
| Offside Front brake disc excessively pitted |3.5.1h| | 180 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 177 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 176 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 176 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 168 |
| Nearside Front Side repeater not working |1.4.A.2c| | 161 |
| Front brake disc in such a condition that it is seriously weakened | 155 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 154 |
| Horn not working |1.6.2a| | 147 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 147 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 141 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 139 |
| Offside Front Side repeater not working |1.4.A.2c| | 135 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 131 |
| Rear Mechanical brake component has restricted free movement | 130 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 127 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 123 |
| Windscreen has damage | 121 |
| Windscreen wiper blade insecure | 119 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 117 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 115 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 113 |
| Offside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 109 |
| Offside front brake binding |3.7.B.1| | 103 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 103 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 102 |
| Nearside Front Shock absorber has negligible damping effect |2.7.5| | 96 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 96 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 96 |
| Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 95 |
| Front brake application uneven | 94 |
| Fuel tank leaking |7.2.3| | 88 |
| Nearside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 86 |
| Hazard warning switch faulty |1.4.B.1d| | 85 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 84 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 84 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 76 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 75 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 72 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 71 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 69 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 67 |
| Stop lamp not working |1.2.1b| | 65 |
| rear brake recording little or no effort |3.7.B.5a| | 65 |
| Fuel cap/sealing device does not fasten securely by positive means |7.2.4b| | 62 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 61 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 60 |
| Rear Exhaust system not adequately supported |7.1.1| | 59 |
| Offside Headlamp insecure |1.7.3| | 58 |
| Offside Front front brake binding |3.7.B.1| | 55 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 55 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 55 |
| An item not tested |Manual| | 54 |
| Front brake disc excessively pitted |3.5.1h| | 53 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 52 |
| Brake pedal anti-slip provision incomplete |3.3.A.1b| | 51 |
| Front position lamp|s| not working |1.1.A.3b| | 50 |
| Centre Exhaust system not adequately supported |7.1.1| | 50 |
| Nearside Headlamp insecure |1.7.3| | 49 |
| Rear Stop lamp not working |1.2.1b| | 48 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 48 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 48 |
| Offside Rear fog lamp not working |1.3.2b| | 47 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 47 |
| Offside Front Shock absorber has negligible damping effect |2.7.5| | 46 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 46 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 46 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 44 |
| Nearside front brake binding |3.7.B.1| | 44 |
| Offside Headlamp not working on main beam |1.7.5a| | 44 |
| Exhaust engine idle speed too high |7.3.D.1| | 43 |
| Offside Front Direction indicator not working |1.4.A.2c| | 43 |
| Offside Obligatory mirror missing |8.1.1| | 43 |
| Offside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 42 |
| Nearside Front Macpherson strut has excessive movement in the upper support bearing assembly |2.5.B.1b| | 41 |
| Nearside Headlamp not working on main beam |1.7.5a| | 41 |
| Offside Rear Brake lever has restricted free movement |3.5.1k| | 39 |
| Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 39 |
| Exhaust tailpipe not capable of allowing the emission probe to be inserted |7.3.D.1| | 39 |
| Rear Sub-frame corroded and seriously weakened |2.4.G.1| | 38 |
| Front Windscreen wiper not operating automatically when switched on |8.2.1b| | 36 |
| rear brakes release unevenly |3.7.B.4| | 35 |
| Offside Rear Sub-frame corroded and seriously weakened |2.4.G.1| | 35 |
| Exhaust emissions carbon monoxide content excessive |7.3.B.1a| | 35 |
| Offside Headlamp not in a clean condition affecting beam image |1.2.4a| | 34 |
| Fuel system component leaking |7.2.3| | 34 |
| Horn not loud enough to be heard by another road user |1.6.2b| | 34 |
| Rear rear brake recording little or no effort |3.7.B.5a| | 34 |
| Nearside Headlamp not in a clean condition affecting beam image |1.2.4a| | 33 |
| Offside Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c| | 33 |
| Offside Rear Suspension arm corroded and seriously weakened |2.4.G.1| | 33 |
| Offside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 33 |