| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 40 |
| Windscreen wiper does not clear the windscreen effectively | 21 |
| Registration plate issues | 7 |
| Parking brake lever has no reserve travel |3.1.6b| | 4 |
| Anti-lock braking system warning lamp indicates an ABS fault | 4 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 4 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 4 |
| Nearside Stop lamp not working |1.2.1b| | 3 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 3 |
| Brake pipe excessively corroded | 3 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 2 |
| Brakes imbalanced across an axle | 2 |
| Registration plate lamp issues | 2 |
| Nearside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 2 |
| Front brake disc in such a condition that it is seriously weakened | 2 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 2 |
| Service brake efficiency less than 50% of the required value (1.2.2 (a) (ii)) | 2 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 2 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Offside Front Headlamp light intensity severely reduced (4.1.4 (a)) | 2 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 2 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Nearside Rear Service brake excessively fluctuating |1.2.1 |e|| | 1 |
| Hazard warning switch missing |1.4.B.1d| | 1 |
| Trailer electrical socket |13 pin| not operating the trailer lamps as intended |1.9.4| | 1 |
| Rear parking brake recording little or no effort | 1 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 1 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 1 |
| Exhaust carbon monoxide content at idle exceeds default limits |8.2.1.2 |b|| | 1 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 1 |
| Electronic stability control warning lamp indicates a fault |7.12 |e|| | 1 |
| Nearside Rear Valve stem seriously damaged |4.1.D.1e| | 1 |
| Offside Rear Valve stem seriously damaged |4.1.D.1e| | 1 |
| Nearside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 1 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 1 |
| Offside Rear reflector missing |1.5.1a| | 1 |
| Offside Front Body has a sharp edge caused by damage door mirror housing |6.1.C.1| | 1 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Front Headlamp aim not tested |4.1.2 |b|| | 1 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Front Brake hose twisted |3.6.B.4c| | 1 |
| Nearside Front Anti-lock braking system wiring excessively damaged |1.6 |d|| | 1 |
| Horn not working |1.6.2a| | 1 |
| Road wheel fixing loose |5.2.1 |a| |i|| | 1 |
| Battery insecure |1.9.1| | 1 |
| Offside Rear Direction indicator lens defective such that the emitted light is adversely affected |4.4.1 |b| |ii|| | 1 |
| Offside Rear Brake pipe at imminent risk of failure or fracture |1.1.11 |a|| | 1 |
| Nearside Rear Brake pipe leaking on an air braking system |1.1.11 |b| |i|| | 1 |
| Nearside Rear Parking brake inoperative on one side |1.4.1 |a|| | 1 |
| Offside Rear Parking brake inoperative on one side |1.4.1 |a|| | 1 |
| Road wheel more than one fixing missing four wheel nuts missing |5.2.1 |a| |ii|| | 1 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 1 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Rear brake application uneven | 1 |
| Headlamp has a product on the lens so that the light output is severely reduced both |4.1.4 |b|| | 1 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 1 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Nearside Front Braking system leaking |3.6.A.1| | 1 |
| Offside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Offside Rear Braking system leaking Brake Flexi to caliper |3.6.A.1| | 1 |
| Brake performance not tested |3.7.A.1| | 1 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 1 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Front Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 1 |
| Nearside Rear brake caliper has restricted free movement |3.5.1k| | 1 |
| Mechanical brake component has restricted free movement | 1 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 1 |
| Nearside Front Hydraulic brake calliper leaking and braking performance affected NSF caliper has visible oil seepage,and on the break performance test NSF shows 30kg/f less breaking effort than the OSF,measured front imbalance 33%. (1.1.16 (b) (ii)) | 1 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 1 |
| Nearside Front Hydraulic brake calliper leaking (1.1.16 (b) (i)) | 1 |
| Front Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen (3.5 (a)) | 1 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 1 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 1 |
| Offside Rear Shock absorbers has a serious fluid leak | 1 |
| Rear Service brake excessively fluctuating (1.2.1 (e)) | 1 |
| Nearside Front Shock absorbers has a serious fluid leak | 1 |
| Nearside Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Nearside Rear Brake pipe leaking on a hydraulic braking system (1.1.11 (b) (ii)) | 1 |
| Offside Rear Brake pipe at imminent risk of failure or fracture (1.1.11 (a)) | 1 |
| Offside Rear Exhaust shield missing where fitted as original equipment creating a risk of fire (6.1.3 (e)) | 1 |
| Nearside Front Position lamp with a multiple light source more than 1/2 not functioning (4.2.1 (a) (ii)) | 1 |
| Offside Front Position lamp with a multiple light source more than 1/2 not functioning (4.2.1 (a) (ii)) | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Nearside Parking brake inoperative on one side also o/s poor (1.4.1 (a)) | 1 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 1 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 1 |
| Oil leaking continuously from transmission posing a serious risk to road safety (8.4.1 (a) (ii)) | 1 |
| Offside Headlamp aim not tested (4.1.2 (b)) | 1 |
| Offside Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 1 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 1 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 1 |
| Nearside Front Position lamp not working sidelight (4.2.1 (a) (ii)) | 1 |
| Offside Front Position lamp not working sidelight (4.2.1 (a) (ii)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Service brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 1 |
| Offside Rear Hydraulic brake calliper damaged and braking performance affected (1.1.16 (a) (ii)) | 1 |
| Offside Rear Inner Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |