| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 114 |
| Headlamp aim out of alignment | 87 |
| Windscreen wiper does not clear the windscreen effectively | 85 |
| Brake pipe excessively corroded | 59 |
| Brake hose excessively deteriorated | 52 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 17 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 16 |
| Registration plate issues | 14 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 13 |
| Nearside Rear Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 11 |
| Rear parking brake recording little or no effort | 11 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 11 |
| Windscreen washer not working | 10 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 9 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 9 |
| Parking brake: efficiency below requirements |3.7.B.7| | 9 |
| Electronic parking brake warning indicates a malfunction |3.1.7| | 9 |
| Anti-lock braking system warning lamp indicates an ABS fault | 9 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 9 |
| Offside Rear Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 8 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 8 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 7 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 7 |
| Offside Rear Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 7 |
| Nearside Rear Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 7 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 7 |
| Offside Rear Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 7 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 6 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 6 |
| Nearside Rear Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 6 |
| Electronic parking brake warning indicates a malfunction (1.1.6 (e)) | 6 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 5 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 5 |
| Nearside Rear Lower Shock absorber has an excessively worn bush |2.7.4| | 5 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 5 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 5 |
| Offside Rear Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 5 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 5 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 5 |
| Brakes imbalanced across an axle | 4 |
| Nearside Rear Tie bar/rod ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 4 |
| Front brake disc in such a condition that it is seriously weakened | 4 |
| Offside Rear Shock absorber has an excessively worn bush |2.7.4| | 4 |
| Windscreen wiper blade insecure | 4 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 4 |
| Brake performance not tested (1.2.1 (g)) | 4 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 4 |
| Horn not working (7.7 (a)) | 4 |
| Nearside Rear Road wheel cracked |4.2.A.1a| | 3 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 3 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 3 |
| Nearside Rear Direction indicator incorrect colour |4.4.3 |a|| | 3 |
| Offside Rear Direction indicator incorrect colour |4.4.3 |a|| | 3 |
| Offside Rear Lower Shock absorber has an excessively worn bush |2.7.4| | 3 |
| Nearside Headlamp not working on main beam |1.7.5a| | 3 |
| Offside Rear Tie bar/rod ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 3 |
| Offside Front Valve stem seriously damaged |4.1.D.1e| | 3 |
| Rear brake binding | 3 |
| Power steering fluid level below minimum |2.3.1| | 3 |
| Offside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2| | 3 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 3 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 3 |
| Nearside Rear Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 3 |
| Offside Front Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 3 |
| Nearside Rear Lower Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 3 |
| Nearside Rear Suspension rod ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 3 |
| Offside Rear Suspension rod ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 3 |
| Nearside Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 3 |
| Offside Rear Rear fog lamp not working |4.5.1 |a| |ii|| | 2 |
| Offside Front Position lamp not working |4.2.1 |a|| | 2 |
| Nearside Rear Parking brake inoperative on one side |1.4.1 |a|| | 2 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 2 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 2 |
| Offside Rear Lower Suspension arm has excessive play in a pin/bearing |2.4.G.2| | 2 |
| Offside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 2 |
| Offside Front Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 2 |
| Offside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 2 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 2 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 2 |
| Nearside Front Valve stem seriously damaged |4.1.D.1e| | 2 |
| Nearside Rear Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 2 |
| Nearside Front Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 2 |
| Nearside Rear Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt |5.3.4 |b| |ii|| | 2 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 2 |
| Nearside Rear Shock absorber has an excessively worn bush |2.7.4| | 2 |
| Offside Headlamp cleaning device inoperative |1.7.2| | 2 |
| Nearside Front Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 2 |
| Offside Front Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 2 |
| Nearside Rear Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 2 |
| Offside Rear Seat belt retracting mechanism defective |5.2.5b| | 2 |
| Nearside Front Lower Shock absorber has an excessively worn bush |2.7.4| | 2 |
| Nearside Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 2 |
| Nearside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 2 |
| Emissions not tested |7.0| | 2 |
| Offside Rear Road wheel bead rim badly distorted |4.2.A.1a| | 2 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2 |
| Horn not working |1.6.2a| | 2 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 2 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Offside Rear Upper Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 2 |
| Offside Rear Seat belt retracting mechanism defective (7.1.2 (e)) | 2 |
| Suspension system inoperative (5.3.5 (a)) | 2 |
| Nearside Front Upper Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 2 |
| Nearside Rear Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Offside Front Lower Shock absorbers has an excessively worn bush (5.3.2 (c)) | 2 |
| Offside Front Road wheel fractured (5.2.2 (a)) | 2 |
| Nearside Front Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Nearside Rear All direction indicators incorrect colour (4.4.3 (a)) | 2 |
| Rear fog lamp switch inoperative (4.5.3 (a)) | 2 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 2 |
| Offside Rear Brake hose leaking on a hydraulic braking system (1.1.12 (c) (ii)) | 2 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 2 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 2 |