| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 460 |
| Headlamp aim out of alignment | 228 |
| Brake pipe excessively corroded | 222 |
| Windscreen wiper does not clear the windscreen effectively | 217 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 88 |
| Brakes imbalanced across an axle | 77 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 68 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 65 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 56 |
| Rear brake binding | 56 |
| Front brake disc in such a condition that it is seriously weakened | 48 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 40 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 39 |
| Parking brake: efficiency below requirements |3.7.B.7| | 37 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 33 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 33 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 29 |
| Rear Exhaust system not adequately supported |7.1.1| | 29 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 27 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 26 |
| Rear parking brake recording little or no effort | 25 |
| Nearside Stop lamp not working |1.2.1b| | 25 |
| Registration plate issues | 25 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 23 |
| Offside Stop lamp not working |1.2.1b| | 22 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 21 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 20 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 19 |
| Parking brake lever has no reserve travel |3.1.6b| | 19 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 18 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 18 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 17 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 16 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 15 |
| Front brake application uneven | 15 |
| Rear Exhaust system insecure (6.1.2 (a)) | 15 |
| Windscreen washer not working | 14 |
| Anti-lock braking system warning lamp indicates an ABS fault | 14 |
| Nearside Front Road wheel bead rim badly distorted |4.2.A.1a| | 13 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 13 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 13 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 13 |
| Hazard warning switch faulty |1.4.B.1d| | 13 |
| Horn not working |1.6.2a| | 13 |
| Fuel system component leaking |7.2.3| | 12 |
| Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 12 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 12 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 12 |
| Nearside Rear Service brake excessively binding |1.2.1 |f|| | 11 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 11 |
| Offside Rear Stop lamp not working |1.2.1b| | 11 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 11 |
| Offside Front Position lamp not working |4.2.1 |a|| | 10 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 10 |
| Front brake excessively fluctuating | 10 |
| Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength outer sill (5.3.6 (a) (i)) | 10 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 10 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 9 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 9 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 9 |
| Exhaust emissions test not completed because smoke levels are significantly in excess of the specified limit values (8.2.2.2 (f)) | 9 |
| Hazard warning switch inoperative (4.4.2 (a) (ii)) | 9 |
| Offside Rear Shock absorbers has a serious fluid leak | 9 |
| Nearside Rear Stop lamp not working |1.2.1b| | 8 |
| Exhaust emissions exceed manufacturer`s specified limit |8.2.2.2 |a|| | 8 |
| Offside front brake binding |3.7.B.1| | 8 |
| Rear Mechanical brake component has restricted free movement | 8 |
| Front Exhaust system not adequately supported |7.1.1| | 8 |
| Exhaust system not adequately supported |7.1.1| | 8 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine (8.2.2.2 (b)) | 8 |
| Rear Exhaust system insecure |6.1.2 |a|| | 8 |
| Brake hose excessively deteriorated | 8 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 8 |
| Direction indicators not working |1.4.A.2c| | 7 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine |8.2.2.2 |b|| | 7 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 7 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 7 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 7 |
| Driver`s airbag obviously defective |5.4.1| | 7 |
| Battery insecure |1.9.1| | 7 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 6 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 6 |
| Nearside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength outer sill (5.3.6 (a) (i)) | 6 |
| Horn not working (7.7 (a) (ii)) | 6 |
| Windscreen has damage | 6 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 6 |
| Oil leaking excessively from engine (8.4.1 (a) (i)) | 6 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 6 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 6 |
| Rear brake application uneven | 6 |
| Windscreen wiper blade insecure | 6 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 6 |