| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 176 |
| Parking brake: efficiency below requirements |3.7.B.7| | 161 |
| Brakes imbalanced across an axle | 121 |
| Service brake: efficiency below requirements |3.7.B.7| | 99 |
| Parking brake lever has no reserve travel |3.1.6b| | 96 |
| Brake pipe excessively corroded | 94 |
| Windscreen wiper does not clear the windscreen effectively | 93 |
| Rear parking brake recording little or no effort | 84 |
| Registration plate issues | 53 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 48 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 44 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 37 |
| Registration plate lamp issues | 33 |
| Rear brake binding | 31 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 30 |
| Brake hose excessively deteriorated | 29 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 27 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 22 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 21 |
| Offside Rear fog lamp not working |1.3.2b| | 17 |
| Offside front brake binding |3.7.B.1| | 17 |
| Nearside front brake binding |3.7.B.1| | 16 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 15 |
| Nearside Stop lamp not working |1.2.1b| | 14 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 14 |
| Front brake application uneven | 14 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 14 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 13 |
| Offside Rear wheel bearing has excessive play |2.6.2| | 13 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 13 |
| Nearside Rear wheel bearing has excessive play |2.6.2| | 13 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 13 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 13 |
| Offside Stop lamp not working |1.2.1b| | 12 |
| Nearside Side repeater not working |1.4.A.2c| | 12 |
| Offside Side repeater not working |1.4.A.2c| | 12 |
| Emissions not tested |7.0| | 12 |
| Nearside Front front brake binding |3.7.B.1| | 12 |
| Horn not working |1.6.2a| | 11 |
| Brake hose has insufficient room to move | 11 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 11 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 11 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 10 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 10 |
| rear brake recording little or no effort |3.7.B.5a| | 10 |
| Nearside Rear Rear wheel bearing has excessive play |2.6.2| | 9 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 9 |
| Rear Exhaust system not adequately supported |7.1.1| | 8 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 8 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 8 |
| Offside Rear Rear wheel bearing has excessive play |2.6.2| | 8 |
| Nearside Front Braking system leaking |3.6.A.1| | 8 |
| Hazard warning switch faulty |1.4.B.1d| | 8 |
| Rear brake application uneven | 8 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 8 |
| Nearside Headlamp not working on main beam |1.7.5a| | 7 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 7 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 7 |
| Offside Front front brake binding |3.7.B.1| | 7 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 7 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 7 |
| Windscreen washer not working | 7 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 7 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 6 |
| Nearside Rear Stop lamp not working |1.2.1b| | 6 |
| Offside Front brake disc excessively pitted |3.5.1h| | 6 |
| Offside Inner Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 6 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 6 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 6 |
| Offside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 6 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 5 |
| Offside Front Brake hose leaking |3.6.A.1| | 5 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 5 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 5 |
| Hazard warning tell tale not working correctly |1.4.B.1e| | 5 |
| Mechanical brake component has restricted free movement | 5 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 5 |
| Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 5 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 5 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 5 |
| Offside Rear Stop lamp not working |1.2.1b| | 5 |
| Offside Front Side repeater not working |1.4.A.2c| | 5 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 5 |
| Brake pedal creeps down while the pedal is held under pressure |3.3.B.1a| | 5 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 5 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 5 |
| Nearside Headlamp not working on main beam (4.1.1 (a) (ii)) | 5 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 5 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 5 |
| Offside Obligatory mirror insecure |8.1.1| | 4 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 4 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 4 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 4 |
| Nearside Front An item not tested |Manual| | 4 |
| Offside Headlamp not working on main beam |1.7.5a| | 4 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 4 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 4 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 4 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 4 |
| Front brake excessively fluctuating | 4 |
| Nearside Front Brake hose leaking |3.6.A.1| | 4 |
| Brake fluid warning lamp illuminated |3.6.G.2| | 4 |
| Vehicle Identification Number not permanently displayed |6.3.5.a| | 4 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 4 |
| Nearside Rear Service brake effort inadequate at a wheel (1.2.1 (a) (i)) | 4 |
| Offside Rear Service brake effort inadequate at a wheel (1.2.1 (a) (i)) | 4 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 3 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 3 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 3 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturer`s specified limits |8.2.1.2 |a|| | 3 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 3 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 3 |
| Nearside Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 3 |
| Nearside Front Front wheel bearing rough when rotated |2.5.A.2| | 3 |
| Brake performance not tested |3.7.A.1| | 3 |
| Parking brake lever ratchet mechanism is broken |3.1.5| | 3 |
| Nearside Front Side repeater not working |1.4.A.2c| | 3 |
| Offside Rear Sub-frame corroded and seriously weakened |2.4.G.1| | 3 |
| Nearside Front brake caliper leaking |3.6.A.1| | 3 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 3 |
| Rear brake disc in such a condition that it is seriously weakened | 3 |
| Exhaust system not adequately supported |7.1.1| | 3 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 3 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 3 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 3 |
| Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 3 |
| Driver`s seat fore and aft adjustment mechanism not functioning as intended. |6.2.A.3| | 3 |
| Rear Mechanical brake component has restricted free movement | 3 |
| Nearside Front Headlamp insecure |1.7.3| | 3 |
| Offside Front Inner Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 3 |
| Nearside Rear Brake valve leaking |3.6.A.1| | 3 |
| Offside Front Direction indicator not working |1.4.A.2c| | 3 |
| Offside Rear Service brake effort inadequate at a wheel |1.2.1 |a| |i|| | 3 |
| Offside Rear Braking system leaking |3.6.A.1| | 3 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 3 |
| Offside Front Service brake excessively binding |1.2.1 |f|| | 3 |
| Parking brake: efficiency below requirements |3.7.D.4| | 3 |
| Offside Inner Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 3 |
| Parking brake is not capable of being maintained in operation by direct mechanical action only |3.1.2| | 3 |
| Nearside Headlamp insecure |1.7.3| | 3 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 3 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 3 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 3 |
| Offside Front Upper Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 3 |