| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 109 |
| Headlamp aim out of alignment | 80 |
| Windscreen wiper does not clear the windscreen effectively | 80 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 45 |
| Brake pipe excessively corroded | 39 |
| Horn not working |1.6.2a| | 33 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 31 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 30 |
| Registration plate issues | 30 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 29 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 27 |
| Parking brake: efficiency below requirements |3.7.B.7| | 26 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 24 |
| Offside Stop lamp not working |1.2.1b| | 23 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 21 |
| Nearside Stop lamp not working |1.2.1b| | 21 |
| Brake hose excessively deteriorated | 21 |
| Brakes imbalanced across an axle | 19 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 18 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 16 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 16 |
| Service brake: efficiency below requirements |3.7.B.7| | 16 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 14 |
| Horn not working (7.7 (a)) | 13 |
| Brake hose damaged | 12 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 11 |
| Windscreen washer not working | 11 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 10 |
| Nearside Steering rack gaiter split |2.2.D.2d| | 10 |
| Front Exhaust system not adequately supported |7.1.1| | 9 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 9 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 9 |
| Anti-lock braking system warning lamp indicates an ABS fault | 9 |
| Offside Rear Stop lamp not working |1.2.1b| | 8 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 8 |
| Emissions not tested |7.0| | 8 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 8 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 8 |
| Rear parking brake recording little or no effort | 8 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 7 |
| Offside Steering rack gaiter split |2.2.D.2d| | 7 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 7 |
| Offside Rear coil spring incomplete |2.4.C.1a| | 7 |
| Offside Rear coil spring broken |2.4.C.1a| | 7 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 7 |
| Rear brake binding | 7 |
| Nearside Rear coil spring incomplete |2.4.C.1a| | 7 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 7 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 6 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 6 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 6 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 6 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 6 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 6 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 6 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 5 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 5 |
| Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b)) | 5 |
| Offside Rear coil spring fractured |2.4.C.1a| | 5 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 5 |
| Nearside Front Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 5 |
| Nearside Rear coil spring broken |2.4.C.1a| | 5 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 5 |
| Anti-lock braking system warning lamp does not illuminate |3.4.1b| | 5 |
| Front brake disc in such a condition that it is seriously weakened | 5 |
| Rear brake disc in such a condition that it is seriously weakened | 5 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 5 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 5 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 5 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 5 |
| Offside Rear fog lamp not working |1.3.2b| | 5 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 5 |
| Nearside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 5 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 5 |
| Exhaust system not adequately supported |7.1.1| | 5 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Nearside Headlamp aim beam image kick up to the offside |1.8| | 4 |
| Brake load sensing valve linkage seized |3.6.E.3| | 4 |
| Steering rack insecure |2.2.B.1a| | 4 |
| Nearside Rear Exhaust has a major leak of exhaust gases |7.1.2| | 4 |
| Horn not working |7.7 |a| |ii|| | 4 |
| Offside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 4 |
| Windscreen has damage | 4 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 4 |
| Emissions not tested (8.2.1.2 (d)) | 4 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 4 |
| Brake load sensing valve seized but ABS functioning (1.1.17 (c) (i)) | 4 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 4 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 4 |
| Rear fog lamp not working |1.3.2b| | 4 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 4 |
| Nearside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 4 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 4 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 4 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 4 |
| Offside Front Lower Front suspension ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 3 |
| Offside Front Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 3 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 3 |
| Offside Front Headlamp aim beam image kick up to the offside |1.8| | 3 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 3 |
| Nearside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 3 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 3 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 3 |
| Battery insecure |1.9.1| | 3 |
| Nearside Rear Stop lamp not working |1.2.1b| | 3 |
| Offside Front Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 3 |
| Horn not loud enough to be heard by another road user |1.6.2b| | 3 |
| Front Brake cable has wires broken and is significantly weakened |3.5.1b| | 3 |
| Offside Rear Statutory seat belt missing |5.1.1| | 3 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 3 |
| Nearside Front Steering rack gaiter split |2.2.D.2d| | 3 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 3 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 3 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 3 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 3 |
| Nearside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 3 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 3 |
| Offside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 3 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 3 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 3 |
| Brake hose has insufficient room to move | 3 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 3 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 3 |
| Rear brake application uneven | 3 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 3 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 3 |
| Rear Mechanical brake component has restricted free movement | 3 |
| Offside Rear Brake cable has wires broken and is significantly weakened |3.5.1b| | 3 |
| Exhaust carbon monoxide content at idle exceeds default limits |8.2.1.2 |b|| | 3 |
| Nearside Rear Outer Suspension component mounting prescribed area excessively corroded significantly reducing structural strength sill (5.3.6 (a) (i)) | 3 |