| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 161 |
| Headlamp aim out of alignment | 159 |
| Windscreen wiper does not clear the windscreen effectively | 154 |
| Brake pipe excessively corroded | 62 |
| Service brake: efficiency below requirements |3.7.B.7| | 52 |
| Brakes imbalanced across an axle | 51 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 49 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 37 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 36 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 30 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 27 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 26 |
| Registration plate issues | 23 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 21 |
| Front brake disc in such a condition that it is seriously weakened | 21 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 20 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 20 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 19 |
| Parking brake: efficiency below requirements |3.7.B.7| | 18 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 18 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 17 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 17 |
| Nearside Front Coil spring not correctly located |2.4.C.2| | 17 |
| Offside Front Coil spring not correctly located |2.4.C.2| | 17 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 16 |
| Rear parking brake recording little or no effort | 15 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 14 |
| Emissions not tested |7.0| | 14 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 14 |
| Offside Stop lamp not working |1.2.1b| | 13 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 13 |
| Parking brake lever has no reserve travel |3.1.6b| | 12 |
| Centre Stop lamp not working |1.2.1b| | 12 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 12 |
| Windscreen has damage | 11 |
| Nearside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 11 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 10 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 10 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 10 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 9 |
| Battery insecure |1.9.1| | 9 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 9 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 9 |
| Front brake excessively fluctuating | 9 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 9 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 8 |
| Nearside Stop lamp not working |1.2.1b| | 8 |
| Windscreen wiper blade insecure | 8 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 8 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 8 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 7 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 7 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 7 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 7 |
| Offside Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 7 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 7 |
| Offside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 7 |
| Rear Exhaust system not adequately supported |7.1.1| | 6 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 6 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 6 |
| Stop lamp not working |1.2.1b| | 6 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 6 |
| Centre Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 6 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 6 |
| Windscreen washer not working | 6 |
| Offside Rear fog lamp not working |1.3.2b| | 5 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 5 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 5 |
| Rear Direction indicator incorrect colour |1.4.A.2f| | 5 |
| Nearside Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 5 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 5 |
| Parking brake lever has excessive side play in the pivot and may disengage |3.1.4a| | 5 |
| Front brake application uneven | 5 |
| Offside Front coil spring broken |2.4.C.1a| | 5 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 5 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 4 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 4 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 4 |
| Brake fluid warning lamp illuminated |3.6.G.2| | 4 |
| Brake load sensing valve linkage seized |3.6.E.3| | 4 |
| Rear fog lamp not working |1.3.2b| | 4 |
| Nearside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 4 |
| Offside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 4 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 4 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 4 |
| All position lamps not working |1.1.A.3b| | 4 |
| Offside Front brake disc excessively pitted |3.5.1h| | 4 |
| Emissions not tested |7.3.A.1| | 4 |
| Offside Rear Direction indicator incorrect colour |4.4.3 |a|| | 4 |
| Brake hose has insufficient room to move | 4 |
| Nearside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 4 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 3 |
| Offside Front Position lamp not working |4.2.1 |a|| | 3 |
| Nearside Rear Stop lamp not working |1.2.1b| | 3 |
| Nearside Front Windscreen wiper not operating automatically when switched on |8.2.1b| | 3 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 3 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 3 |
| Nearside Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c| | 3 |
| An item not tested |Manual| | 3 |
| rear brake recording little or no effort |3.7.B.5a| | 3 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 3 |
| Nearside Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 3 |
| Parking brake lever, pawl mechanism pivots or their associated mountings are insecure |3.1.4b| | 3 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 3 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 3 |
| Spare wheel carrier insecure |6.4.2| | 3 |
| Parking brake lever, pawl mechanism pivot|s| retaining device insecure |3.1.4b| | 3 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 3 |
| Position lamp switch faulty |1.1.A.1| | 3 |
| Exhaust system not adequately supported |7.1.1| | 3 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 3 |
| Nearside Headlamp not working on main beam |1.7.5a| | 3 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 3 |
| Rear brake application uneven | 3 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 3 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 3 |
| Power steering pump leaking from a failed seal |2.3.3b| | 3 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 3 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 3 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 3 |
| Nearside Front Ball joint has excessive play |2.2.B.1f| | 3 |
| Offside Front Headlamp insecure |1.7.3| | 3 |
| Offside Front Ball joint has excessive play |2.2.B.1f| | 3 |
| Nearside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 3 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 3 |
| Brake load sensing valve seized |3.6.E.3| | 3 |
| Exhaust tailpipe not capable of allowing the emission probe to be inserted |7.3.D.1| | 3 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 3 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 3 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 3 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 3 |
| Offside Headlamp lens seriously defective (4.1.1 (b) (ii)) | 3 |
| Nearside Headlamp lens seriously defective (4.1.1 (b) (ii)) | 3 |