| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 19 |
| Parking brake: efficiency below requirements |3.7.B.7| | 6 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 5 |
| Rear parking brake recording little or no effort | 4 |
| Brake pipe excessively corroded | 4 |
| Offside Stop lamp not working |1.2.1b| | 3 |
| Windscreen wiper does not clear the windscreen effectively | 3 |
| Brakes imbalanced across an axle | 3 |
| Nearside Stop lamp not working |1.2.1b| | 3 |
| Offside Rear coil spring incomplete |2.4.C.1a| | 2 |
| Registration plate issues | 2 |
| Mechanical brake component has restricted free movement | 2 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 2 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 2 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 2 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Parking brake lever has no reserve travel |3.1.6b| | 2 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 2 |
| Nearside Rear brake caliper leaking |3.6.A.1| | 2 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 2 |
| Nearside Rear Wheel bolt|s| missing |4.2.A.1e| | 1 |
| Front brake application uneven | 1 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 1 |
| Brake fluid significantly below minimum mark |1.1.10 |d| |ii|| | 1 |
| Service brake lagging in operation |1.2.1 |d|| | 1 |
| Offside Front Brake pipe leaking on a hydraulic braking system |1.1.11 |b| |ii|| | 1 |
| Front Exhaust system insecure |6.1.2 |a|| | 1 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 1 |
| Stop lamp|s| remains on when the brakes are released |4.3.2 |a| |iii|| | 1 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt |6.1.7 |g| |ii|| | 1 |
| Rear Brake pipe connection leaking on a hydraulic braking system |1.1.11 |b| |ii|| | 1 |
| Front Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Battery insecure |1.9.1| | 1 |
| Offside Rear Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 1 |
| Horn not working |1.6.2a| | 1 |
| Offside Front Seat belt retracting mechanism defective |5.2.5b| | 1 |
| Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 1 |
| Rear Direction indicators incorrect colour both rear |1.4.A.2f| | 1 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Brake pedal anti-slip provision loose |3.3.A.1b| | 1 |
| Nearside Rear Braking system leaking |3.6.A.1| | 1 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 1 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 1 |
| Rear Stop lamp|s| remains on when the brakes are released |4.3.2 |a| |iii|| | 1 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Nearside Front Coil spring fractured or broken |5.3.1 |b| |i|| | 1 |
| Nearside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 1 |
| Offside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 1 |
| Nearside Front Lower Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 1 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Nearside Rear coil spring broken |2.4.C.1a| | 1 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 1 |
| Brake hose excessively deteriorated | 1 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Offside Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 1 |
| Central Rear Seat belt damaged |7.1.2 |b| |i|| | 1 |
| Offside Front Position lamp not working |4.2.1 |a|| | 1 |
| Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 1 |
| Nearside Outer Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c| | 1 |
| Offside Outer Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c| | 1 |
| Offside Rear Brake cable has restricted free movement |3.5.1k| | 1 |
| Offside Rear brake caliper leaking |3.6.A.1| | 1 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 1 |
| Offside Side repeater insecure |1.4.A.2b| | 1 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Nearside Front Brake hose twisted |found during steering lock to lock check| |2.2.D.2b| | 1 |
| Nearside Rear Rear wheel bearing has excessive play |2.6.2| | 1 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 1 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 1 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 1 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 1 |
| Exhaust carbon monoxide content at 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 |
| Offside Rear fog lamp not working |4.5.1 |a| |ii|| | 1 |
| Centre Rear Statutory seat belt missing |5.1.1| | 1 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 1 |
| Rear brake binding | 1 |
| Offside Rear coil spring fractured |2.4.C.1a| | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear Shock absorber insecure |2.7.2b| | 1 |
| Centre Front Lower engine mounting deteriorated resulting in excessive movement |6.1.D.1a| | 1 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Brake pedal anti-slip provision worn smooth |3.3.A.1b| | 1 |
| Nearside Front Valve stem seriously damaged |4.1.D.1e| | 1 |
| Offside Front Valve stem seriously damaged |4.1.D.1e| | 1 |
| Nearside Rear Valve stem seriously damaged |4.1.D.1e| | 1 |
| Offside Rear Valve stem seriously damaged |4.1.D.1e| | 1 |
| Front Position lamp not working Both (4.2.1 (a) (ii)) | 1 |