| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 45 |
| Registration plate lamp issues | 26 |
| Windscreen wiper does not clear the windscreen effectively | 24 |
| Brake pipe excessively corroded | 14 |
| Brakes imbalanced across an axle | 11 |
| Rear brake binding | 9 |
| Offside Rear fog lamp not working |1.3.2b| | 7 |
| Front brake disc in such a condition that it is seriously weakened | 5 |
| Brake load sensing valve seized |3.6.E.3| | 5 |
| Anti-lock braking system warning lamp indicates an ABS fault | 4 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 4 |
| Parking brake: efficiency below requirements |3.7.B.7| | 4 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 3 |
| Nearside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 3 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 3 |
| Service brake: efficiency below requirements |3.7.B.7| | 3 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 3 |
| Rear brake application uneven | 3 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 3 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 3 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 3 |
| Brake load sensing valve linkage seized |3.6.E.3| | 3 |
| Rear Drag link end ball joint has excessive play |2.2.B.1f| | 2 |
| Offside Stop lamp not working |1.2.1b| | 2 |
| Brake cable has wires broken and is significantly weakened |3.5.1b| | 2 |
| Parking brake lever has no reserve travel |3.1.6b| | 2 |
| Emissions not tested |7.0| | 2 |
| Nearside Stop lamp not working |1.2.1b| | 2 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 2 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 2 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Offside Upper Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 2 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 2 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 2 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 2 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 2 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Offside Front Side repeater not working |1.4.A.2c| | 2 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Offside Rear Lower Leaf spring fractured |2.4.B.1a| | 1 |
| Offside Front Obligatory mirror insecure |8.1.1| | 1 |
| Nearside Rear Body insecure and dangerous to other road users |6.1.B.1b| | 1 |
| Cab mounting fixings insecure (6.2.2 (c) (i)) | 1 |
| Nearside Front Air/vacuum reservoir inadequately mounted air tanks strap missing (1.1.9 (c)) | 1 |
| Front Drag link end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 1 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Offside Rear Air brake cylinder/actuator leaking parking brake off (1.1.16 (b) (i)) | 1 |
| Offside Front Air brake cylinder/actuator leaking foot brake on (1.1.16 (b) (i)) | 1 |
| Nearside Rear Outline marker lamp not working (4.2.1 (a) (ii)) | 1 |
| Offside Rear Outline marker lamp not working (4.2.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Offside Rear position lamp|s| incorrect colour |1.1.A.3e| | 1 |
| Offside Stop lamp emits other than a steady red light |1.2.1e| | 1 |
| Battery insecure |1.9.1| | 1 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 1 |
| Offside Obligatory mirror is incapable of being adjusted to provide an adequate view to the rear |8.1.2b| | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Front Direction indicator insecure |1.4.A.2b| | 1 |
| Centre Stop lamp not working |1.2.1b| | 1 |
| Centre Passenger`s seat insecure |6.2.A.1| | 1 |
| Nearside Rear Passenger`s seat insecure |6.2.A.1| | 1 |
| Anti-roll bar linkage pin or bush excessively worn x2 rear |5.3.4 |a| |i|| | 1 |
| Anti-roll bar linkage pin or bush excessively worn D bushes |5.3.4 |a| |i|| | 1 |
| Nearside Rear Seat belt retracting mechanism defective |5.1.B.6b| | 1 |
| Offside Front Headlamp not in good working order affecting the beam image |1.2.4a| | 1 |
| Seat belt locking mechanism does not secure or release |5.1.B.6a| | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Nearside Front Direction indicator excessively deteriorated so that it is not visible from a reasonable distance |1.4.A.2e| | 1 |
| Offside Front Direction indicator excessively deteriorated so that it is not visible from a reasonable distance |1.4.A.2e| | 1 |
| Nearside Front Direction indicator excessively deteriorated so that it is not visible from a reasonable distance side |1.4.A.2e| | 1 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1 |
| Rear fog lamp tell tale not working |1.3.1b| | 1 |
| Horn is a siren |1.6.2c| | 1 |
| Offside Side repeater not working |1.4.A.2c| | 1 |
| Nearside Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c| | 1 |
| Offside Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c| | 1 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 1 |
| Nearside Rear Shock absorber insecure shocker top mount loose |2.7.2b| | 1 |
| Nearside Front Lower Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1 |
| Offside Front Lower Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 1 |
| Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Headlamp aim beam image obviously incorrect both sides |1.8.A.1b| | 1 |
| Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Nearside Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 1 |
| Offside Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 1 |
| Nearside Headlamp lens seriously defective |4.1.1 |b| |ii|| | 1 |
| Offside Headlamp lens seriously defective |4.1.1 |b| |ii|| | 1 |
| Offside Rear fog lamp not working |4.5.1 |a| |ii|| | 1 |
| Offside Rear Rear fog lamp emits a light other than red |1.3.2e| | 1 |
| Offside All position lamps not working |1.1.A.3b| | 1 |
| Offside Rear Position lamp with a multiple light source more than 1/2 not functioning (4.2.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Rear Brake load sensing valve defective and function impaired valve freed-off |3.6.E.3| | 1 |
| Nearside Front Headlamp levelling device inoperative (4.1.5 (a)) | 1 |
| Offside Front Headlamp levelling device inoperative (4.1.5 (a)) | 1 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 1 |
| Offside Headlamp levelling device inoperative (4.1.5 (a)) | 1 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Nearside Rear Upper Outline marker lamp not working (4.2.1 (a) (ii)) | 1 |
| Offside Rear Upper Outline marker lamp not working (4.2.1 (a) (ii)) | 1 |
| Nearside Outline marker lamp not working side marker lamp body (4.2.1 (a) (ii)) | 1 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Service brake: efficiency below requirements |3.7.C.1a| | 1 |
| Central Front Seat belt retracting mechanism defective (7.1.2 (e)) | 1 |
| Nearside Front Brake hose bulging under pressure (1.1.12 (d)) | 1 |
| Offside Front Brake hose bulging under pressure (1.1.12 (d)) | 1 |
| Nearside Rear Brake pipe leaking on a hydraulic braking system (1.1.11 (b) (ii)) | 1 |
| Brake performance not tested due to leaking pipe, hoses bulge (1.2.1 (g)) | 1 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Front Upper Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Front Passenger`s seat insecure |6.2.A.1| | 1 |
| Nearside Side repeater not working |1.4.A.2c| | 1 |
| Brake pipe leaking on a hydraulic braking system Front to rear pipe (1.1.11 (b) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Exhaust has a part missing |7.1.1a| | 1 |
| Nearside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c| | 1 |
| Nearside Rear Anti-roll bar attachment bracket/mounting fractured |2.4.G.1| | 1 |
| Rear Exhaust has a part missing |7.1.1a| | 1 |
| Rear Braking system leaking |3.6.A.1| | 1 |
| Nearside Upper Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Rear fog lamp not working |4.5.1 |a| |ii|| | 1 |
| Nearside Rear Additional braking device wiring not secure |3.6.I.5| | 1 |
| Offside Front Additional braking device wiring not secure |3.6.I.5| | 1 |
| Nearside Seat belt locking mechanism does not secure or release |5.2.5a| | 1 |
| Brake hose damaged | 1 |
| Nearside Rear Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Nearside Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (c)) | 1 |
| Nearside Rear Stop lamp(s) adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Offside Front Driver`s door cannot be opened from inside the vehicle |6.2.3 |a|| | 1 |
| Offside Rear Brake load sensing valve seized but ABS functioning |1.1.17 |c| |i|| | 1 |
| Front Service brake has no recorded effort at a wheel both sides recording no effort |1.2.1 |a| |ii|| | 1 |
| Offside Rear Parking brake inoperative on one side recording very little effort |1.4.1 |a|| | 1 |
| Service brake efficiency less than 50% of the required value |1.2.2 |a| |ii|| | 1 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 1 |
| Drivers door cannot be opened from inside the vehicle (6.2.3 (a)) | 1 |
| Nearside All outline marker lamps not working (4.2.1 (a) (ii)) | 1 |
| Driver`s door cannot be opened from inside the vehicle |6.2.B.1b| | 1 |
| Exhaust system not adequately supported |7.1.1| | 1 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Drivers door cannot be opened from inside the vehicle (6.2.3 (a)) | 1 |
| Offside Rear Air brake cylinder/actuator leaking and braking performance affected (1.1.16 (b) (ii)) | 1 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Rear fog lamp switch inoperative (4.5.3 (a) (ii)) | 1 |
| Rear Exhaust fumes causing a danger to health of persons on board Exhaust pipe missing (6.1.2 (b) (ii)) | 1 |
| Rear Exhaust system not adequately supported |7.1.1| | 1 |
| Nearside Rear Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 1 |
| All outline marker lamps not working |4.2.1 |a|| | 1 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Upper Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 1 |
| Rear fog lamp switch inoperative (4.5.3 (a) (ii)) | 1 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Exhaust has a major leak of exhaust gases On the front pipe |6.1.2 |a|| | 1 |
| Nearside Front Headlamp insecure |4.1.1 |c|| | 1 |
| Offside front brake binding |3.7.B.1| | 1 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 1 |
| Front Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Rear Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Nearside Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Rear fog lamp not working |1.3.2b| | 1 |
| Nearside Front Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Horn not working |1.6.2a| | 1 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 1 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 1 |
| Nearside Rear Rear position lamp|s| excessively damaged so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Rear Rear position lamp|s| excessively damaged so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Nearside Outline marker lamp not working (4.2.1 (a) (ii)) | 1 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Nearside Front Obligatory mirror missing (3.3 (a)) | 1 |
| Offside rear brake excessively fluctuating |3.7.B.3| | 1 |
| Nearside Stop lamp not working when position lights on |1.2.1b| | 1 |
| Offside Stop lamp not working when position lights on |1.2.1b| | 1 |
| Nearside Front position lamp|s| adversely affected by the operation of another lamp when brakes applied |1.1.A.3f| | 1 |
| Offside Front position lamp|s| adversely affected by the operation of another lamp when brakes applied |1.1.A.3f| | 1 |
| Headlamp aim aimed so that it dazzles other road users both stuck on main beam |1.8.A.1a| | 1 |
| Dipswitch operation does not extinguish all main beam headlamps leaving at least one pair of dipped beam headlamps |1.7.4b| | 1 |
| Offside Front Body insecure and dangerous to other road users rear wing cover |6.1.B.1b| | 1 |
| Rear parking brake recording little or no effort | 1 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Offside Rear Anti-roll bar attachment bracket/mounting insecure Bracket missing! |2.4.G.1| | 1 |
| Fuel system component leaking |7.2.3| | 1 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 1 |
| Offside Obligatory mirror insecure |8.1.1| | 1 |
| Nearside Rear Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 1 |
| Offside Rear Position lamp not working main light |4.2.1 |a|| | 1 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Offside Front Headlamp insecure |1.7.3| | 1 |
| Front brake excessively fluctuating | 1 |
| Front brake application uneven | 1 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Front Upper Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear Direction indicators adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Offside Rear Direction indicators adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Exhaust has a major leak of exhaust gases silencer |7.1.2| | 1 |
| Windscreen has damage | 1 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Nearside Front Shock absorber has negligible damping effect |2.7.5| | 1 |
| Bonnet cannot be secured in the closed position |8.4.1| | 1 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Exhaust has a major leak of exhaust gases silencer (6.1.2 (a)) | 1 |
| Offside Front Upper Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Anti-roll bar linkage pin or bush excessively worn rear centre bushes and link bushes (5.3.4 (a) (i)) | 1 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 1 |
| Front Drag link end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c| | 1 |
| Brake pipe leaking |3.6.A.1| | 1 |