| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 114 |
| Windscreen wiper does not clear the windscreen effectively | 81 |
| Service brake: efficiency below requirements |3.7.B.7| | 63 |
| Brakes imbalanced across an axle | 49 |
| Registration plate lamp issues | 49 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 33 |
| Horn not working |1.6.2a| | 28 |
| Brake pipe excessively corroded | 26 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 17 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 16 |
| Rear fog lamp not working |1.3.2b| | 14 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 14 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 13 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 11 |
| Nearside Stop lamp not working |1.2.1b| | 11 |
| Windscreen washer not working | 10 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 10 |
| Offside Stop lamp not working |1.2.1b| | 9 |
| Parking brake lever has no reserve travel |3.1.6b| | 9 |
| Registration plate issues | 8 |
| Horn not working (7.7 (a) (ii)) | 8 |
| Horn not working |7.7 |a| |ii|| | 8 |
| Horn not working (7.7 (a)) | 8 |
| Parking brake: efficiency below requirements |3.7.B.7| | 8 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 7 |
| Driver`s seat cannot be secured in the upright position. |6.2.A.2| | 7 |
| Brake hose excessively deteriorated | 7 |
| Nearside Rear Service brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 6 |
| Rear brake binding | 6 |
| Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b)) | 6 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 6 |
| Fuel tank leaking |7.2.3| | 5 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 5 |
| Rear Exhaust system not adequately supported |7.1.1| | 5 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 5 |
| Offside Rear Service brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 5 |
| Brake load sensing valve seized |3.6.E.3| | 5 |
| Offside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 5 |
| Nearside Rear position lamp|s| incorrect colour |1.1.A.3e| | 5 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 5 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 5 |
| Nearside Headlamp not working on main beam (4.1.1 (a) (ii)) | 5 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 5 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 5 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 5 |
| Nearside Headlamp not working on main beam |1.7.5a| | 5 |
| Brake load sensing valve inoperative and ABS not fitted or inoperative (1.1.17 (c) (ii)) | 5 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 4 |
| Offside Rear fog lamp not working |1.3.2b| | 4 |
| Brake load sensing valve seized and ABS not fitted or inoperative (1.1.17 (c) (ii)) | 4 |
| Brake load sensing valve linkage seized |3.6.E.3| | 4 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 4 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 4 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 4 |
| Offside Stop lamp emits other than a steady red light |1.2.1e| | 4 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 4 |
| Rear parking brake recording little or no effort | 4 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 4 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 4 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |
| Horn sounds harsh or grating |1.6.2e| | 3 |
| An item not tested |Manual| | 3 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Rear brake application uneven | 3 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Fuel tank leaking (6.1.3 (b) (i)) | 3 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 3 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 3 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 3 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 3 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 3 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 3 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 3 |
| Brake load sensing valve linkage defective and function impaired (1.1.17 (a)) | 3 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Offside Rear Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 3 |
| Offside Rear Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 2 |
| Brake load sensing valve inoperative |3.6.E.3| | 2 |
| Nearside Rear Service brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 2 |
| Offside Rear Service brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 2 |
| Offside Front Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 2 |
| Emissions not tested |8.2.1.2 |d|| | 2 |
| Hazard warning switch faulty |1.4.B.1d| | 2 |
| Horn not loud enough to be heard by another road user |1.6.2b| | 2 |
| Emissions not tested (8.2.1.2 (d)) | 2 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Exhaust emissions - engine idle speed too high (8.2.1.2 (e)) | 2 |
| Brake pedal anti-slip provision incomplete |3.3.A.1b| | 2 |
| Driver`s seat insecure |6.2.A.1| | 2 |
| Parking brake lever ratchet mechanism is excessively worn |3.1.5| | 2 |
| Offside Rear position lamp|s| incorrect colour |1.1.A.3e| | 2 |
| Rear Body has a sharp edge caused by damage |6.1.C.1| | 2 |
| Nearside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| rear brake recording little or no effort |3.7.B.5a| | 2 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 2 |
| Nearside Rear Service brake effort inadequate at a wheel (1.2.1 (a) (i)) | 2 |
| Offside Headlamp not working on main beam |1.7.5a| | 2 |
| Main beam `tell-tale` not working |1.7.4c| | 2 |
| Brake load sensing valve seized and ABS not fitted or inoperative |1.1.17 |c| |ii|| | 2 |
| Emissions unable to be completed (8.2.1.2 (d)) | 2 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 2 |
| Rear fog lamp tell-tale not working (4.9.1 (a) (ii)) | 2 |
| Fuel cap/sealing device ineffective (6.1.3 (b) (i)) | 2 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 2 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 2 |
| Offside Rear Stop lamp not working |1.2.1b| | 2 |
| Emissions not tested |7.0| | 2 |
| Service brake efficiency less than 50% of the required value (1.2.2 (a) (ii)) | 2 |
| Reversing lamp inoperative (4.6.1 (a)) | 2 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 2 |
| Fuel tank leaking |6.1.3 |b| |i|| | 2 |
| Hinged tailboard cannot be secured in the closed position |6.4.1| | 2 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 2 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 2 |
| Fuel cap/sealing device missing (6.1.3 (b) (i)) | 2 |
| Rear fog lamp missing (4.5.1 (a) (ii)) | 2 |
| Nearside Headlamp insecure |1.7.3| | 2 |
| Windscreen has damage | 2 |
| Exhaust emissions likely to be affected by an exhaust leak (8.2.1.1 (b)) | 2 |
| Brake performance not tested (1.2.1 (g)) | 2 |
| Offside Rear Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 2 |
| Braking system leaking |3.6.A.1| | 2 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 2 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Nearside Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (c)) | 2 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Steering pivot point has excessive play |2.2.B.1g| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Exhaust catalytic converter missing where one was fitted as standard (8.2.1.1 (a)) | 2 |
| Drivers seat backrest cannot be secured in the upright position. (6.2.5 (b) (ii)) | 2 |