| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 841 |
| Windscreen wiper does not clear the windscreen effectively | 820 |
| Headlamp aim out of alignment | 717 |
| Registration plate issues | 244 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 213 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 184 |
| Battery insecure |1.9.1| | 178 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 166 |
| Brake hose excessively deteriorated | 162 |
| Nearside Stop lamp not working |1.2.1b| | 160 |
| Anti-lock braking system warning lamp indicates an ABS fault | 151 |
| Brakes imbalanced across an axle | 150 |
| Offside Stop lamp not working |1.2.1b| | 137 |
| Front brake disc in such a condition that it is seriously weakened | 131 |
| Parking brake lever has no reserve travel |3.1.6b| | 129 |
| Rear parking brake recording little or no effort | 128 |
| Parking brake: efficiency below requirements |3.7.B.7| | 121 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 98 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 94 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 90 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 86 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 83 |
| Centre Stop lamp not working |1.2.1b| | 83 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 71 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 66 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 62 |
| Nearside Rear Stop lamp not working |1.2.1b| | 62 |
| Rear brake application uneven | 61 |
| Brake pipe excessively corroded | 60 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 53 |
| Offside Rear Stop lamp not working |1.2.1b| | 52 |
| Offside Rear fog lamp not working |1.3.2b| | 51 |
| Rear Exhaust system not adequately supported |7.1.1| | 51 |
| Windscreen has damage | 51 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 46 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 43 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 41 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 39 |
| Rear brake binding | 39 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 37 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 36 |
| Emissions not tested |7.0| | 34 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 32 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 32 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 31 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 31 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 31 |
| Exhaust system not adequately supported |7.1.1| | 30 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 30 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 29 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 28 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 28 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 27 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 27 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 27 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 26 |
| Service brake: efficiency below requirements |3.7.B.7| | 26 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 26 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 26 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 26 |
| Service brake: efficiency below requirements |3.7.C.1a| | 25 |
| Windscreen wiper blade insecure | 24 |
| Nearside Front Wheel nut|s| missing |4.2.A.1e| | 24 |
| Nearside Rear Wheel nut|s| missing |4.2.A.1e| | 24 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 24 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 24 |
| Offside Obligatory mirror insecure |8.1.1| | 24 |
| Offside Front brake disc excessively pitted |3.5.1h| | 23 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 23 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 22 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 22 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 22 |
| Centre Exhaust system not adequately supported |7.1.1| | 21 |
| Centre Rear Stop lamp not working |1.2.1b| | 21 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 20 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 20 |
| Offside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 19 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 19 |
| Offside Rear Braking system leaking |3.6.A.1| | 18 |
| Horn not working |1.6.2a| | 18 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 18 |
| Nearside Rear Braking system leaking |3.6.A.1| | 17 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 17 |
| Offside Rear wheel cylinder leaking |3.6.A.1| | 17 |
| Emissions not tested (8.2.1.2 (d)) | 17 |
| Nearside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 17 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 17 |
| Offside Rear Suspension arm corroded and seriously weakened (5.3.3 (b) (i)) | 16 |
| Offside Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 16 |
| Offside Front Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 16 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 16 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 16 |
| Stop lamp not working |1.2.1b| | 15 |
| Offside Front brake disc excessively scored |3.5.1h| | 15 |
| Emissions not tested |7.3.A.1| | 15 |