| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 35 |
| Windscreen wiper does not clear the windscreen effectively | 31 |
| Registration plate lamp issues | 28 |
| Brake pipe excessively corroded | 21 |
| Parking brake: efficiency below requirements |3.7.B.7| | 10 |
| Brakes imbalanced across an axle | 7 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 6 |
| Nearside Stop lamp not working |1.2.1b| | 6 |
| Rear parking brake recording little or no effort | 6 |
| Windscreen washer not working | 6 |
| Offside Rear fog lamp not working |1.3.2b| | 5 |
| Front brake disc in such a condition that it is seriously weakened | 5 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 5 |
| Nearside Headlamp aim beam image kick up to the offside |1.8| | 5 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 5 |
| Offside Stop lamp not working |1.2.1b| | 5 |
| Parking brake lever has no reserve travel |3.1.6b| | 4 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 4 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 4 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 4 |
| Nearside Rear Stop lamp not working |1.2.1b| | 4 |
| Rear brake binding | 4 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 3 |
| Brake load sensing valve seized |3.6.E.3| | 3 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 3 |
| Horn not working |1.6.2a| | 3 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Offside Rear Outline marker lamp not working (4.2.1 (a) (ii)) | 3 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Brake load sensing valve linkage seized |3.6.E.3| | 3 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 3 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 3 |
| Rear fog lamp not working |1.3.2b| | 3 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2 |
| Offside Rear Upper Outline marker lamp not working (4.2.1 (a) (ii)) | 2 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 2 |
| Nearside Side repeater not working |1.4.A.2c| | 2 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 2 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Centre Stop lamp not working |1.2.1b| | 2 |
| Battery insecure |1.9.1| | 2 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 2 |
| Offside Front brake disc excessively pitted |3.5.1h| | 2 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 2 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 2 |
| Exhaust emissions exceed manufacturer`s specified limit |8.2.2.2 |a|| | 2 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 2 |
| Hazard warning switch faulty |1.4.B.1d| | 2 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 2 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 2 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 2 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 2 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Nearside Front Upper Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 2 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 2 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 2 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 2 |
| Nearside Rear Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 2 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 2 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 2 |
| Nearside Front Upper Outline marker lamp not working (4.2.1 (a) (ii)) | 2 |
| Offside Front Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 2 |
| Registration plate issues | 2 |
| Brake load sensing valve linkage defective and function impaired (1.1.17 (a)) | 1 |
| Offside Front Service brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Nearside Front Brake hose bulging under pressure (1.1.12 (d)) | 1 |
| Rear Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Nearside Rear Upper Outline marker lamp not working (4.2.1 (a) (ii)) | 1 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Outline marker lamp not working |4.2.1 |a|| | 1 |
| Central Stop lamp|s| not working |4.3.1 |a| |ii|| | 1 |
| Offside Side repeater not working |1.4.A.2c| | 1 |
| Nearside Direction indicator flashing more than 120 times a minute |1.4.A.2g| | 1 |
| Rear Brake load sensing valve linkage seized |3.6.E.3| | 1 |
| Centre Rear Upper Stop lamp not working |1.2.1b| | 1 |
| Offside Front Integral body structure corroded to the extent that the rigidity of the assembly is significantly reduced A pillar to cross section under windscreen (6.1.1 (c) (i)) | 1 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Brake load sensing valve seized but ABS functioning (1.1.17 (c) (i)) | 1 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Offside Rear Service brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Nearside Front Headlamp light intensity severely reduced |4.1.4 |a|| | 1 |
| Offside Front Headlamp light intensity severely reduced |4.1.4 |a|| | 1 |
| Offside Rear Stop lamp adversely affected by the operation of another lamp side light |1.2.1f| | 1 |
| Rear fog lamp switch insecure |1.3.1a| | 1 |
| Rear fog lamp switch faulty |1.3.1a| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Brake relay lever has restricted free movement |3.5.1k| | 1 |
| Nearside Rear Anti-roll bar attachment bracket inappropriately repaired |2.4.A.2| | 1 |
| Nearside Front Lower Anti-roll bar linkage insecure |2.4.G.1| | 1 |
| Nearside Front Battery insecure |1.9.1| | 1 |
| Offside Rear Fuel system component leaking |7.2.3| | 1 |
| Nearside Rear position lamp|s| has less than 50% of the light sources illuminating |1.1.A.3b| | 1 |
| Front brake disc excessively pitted |3.5.1h| | 1 |
| Rear Exhaust system not adequately supported |7.1.1| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Hazard warning switch inoperative |4.4.2 |a| |ii|| | 1 |
| Offside Obligatory mirror seriously damaged, affecting the rear view (3.3 (b) (ii)) | 1 |
| Offside Rear Service brake excessively fluctuating |1.2.1 |e|| | 1 |
| Emissions not tested (8.2.2.2 (e)) | 1 |
| Front Valve stem seriously damaged both sides |4.1.D.1e| | 1 |
| Rear Valve stem seriously damaged both sides |4.1.D.1e| | 1 |
| Offside Rear Anti-roll bar attachment bracket/mounting missing (5.3.3 (a) (ii)) | 1 |
| Emissions unable to be completed due to exhaust (8.2.2.2 (e)) | 1 |
| Rear Exhaust has a major leak of exhaust gases tail pipe (6.1.2 (a)) | 1 |
| Front brake application uneven | 1 |
| Offside front brake recording little or no effort |3.7.B.5a| | 1 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Nearside Front Side repeater not working |1.4.A.2c| | 1 |
| Central Brake pipe leaking on a hydraulic braking system (1.1.11 (b) (ii)) | 1 |
| Offside Rear rear brake excessively fluctuating |3.7.B.3| | 1 |
| Nearside rear brake excessively fluctuating |3.7.B.3| | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Front Brake pipe leaking on a hydraulic braking system burst (1.1.11 (b) (ii)) | 1 |
| Brake performance not tested Brake Pipe Burst (1.2.1 (g)) | 1 |
| Driver`s seat insecure |6.2.A.1| | 1 |
| Nearside Passenger`s seat insecure |6.2.A.1| | 1 |
| Nearside Rear Upper Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Stop lamp(s) remains on when the brakes are released (4.3.2 (a) (iii)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Nearside Rear Upper Shock absorbers has an excessively worn bush (5.3.2 (c)) | 1 |
| Nearside Outline marker lamp not working (4.2.1 (a) (ii)) | 1 |
| Nearside Front Suspension arm ball joint excessively worn n/s/f lower balljoint excess play (above 3mm) (5.3.4 (a) (i)) | 1 |
| Front Direction indicator incorrect colour both |4.4.3 |a|| | 1 |
| Nearside Rear Upper Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Offside Rear Upper Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Nearside Rear Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Nearside Rear Brake pipe fouled by moving parts |3.6.B.2a| | 1 |
| Offside Outline marker lamp does not illuminate simultaneously with the position lamps (4.2.2 (a)) | 1 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 1 |
| Offside Rear fog lamp does not emit a steady red light |1.3.2e| | 1 |
| Nearside Front Cab or chassis has excessive corrosion, seriously affecting its strength within 30cm of a cab mounting back panel |6.2.2 |d| |i|| | 1 |
| Offside Front Cab or chassis has excessive corrosion, seriously affecting its strength within 30cm of a cab mounting back panel |6.2.2 |d| |i|| | 1 |
| Nearside Front Cab or chassis has excessive corrosion, seriously affecting its strength within 30cm of a cab mounting sill |6.2.2 |d| |i|| | 1 |
| Nearside Front Cab or chassis has excessive corrosion, seriously affecting its strength within 30cm of a cab mounting inner sills |6.2.2 |d| |i|| | 1 |
| Steering rack gaiter split both sides |2.2.D.2d| | 1 |
| Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Centre Seat belt attachment fitting fractured |5.2.3| | 1 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Windscreen has damage | 1 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 1 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 1 |
| Offside Rear Lower Stop lamp not working |1.2.1b| | 1 |
| Nearside Direction indicators flashing less than 60 times a minute |1.4.A.2g| | 1 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 1 |
| Rear brake application uneven | 1 |
| Rear Exhaust system insecure |6.1.2 |a|| | 1 |
| Offside Front Brake pipe leaking on an air braking system |1.1.11 |b| |i|| | 1 |
| Brake performance not tested offside front brake pipe leaking |1.2.1 |g|| | 1 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine (8.2.2.2 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Outline marker lamp not working (4.2.1 (a) (ii)) | 1 |
| Nearside Headlamp insecure (4.1.1 (c)) | 1 |
| Offside Headlamp aim projected beam image is obviously incorrect kick off to offside of vehicle (4.1.2 (c)) | 1 |
| Nearside Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Offside Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 1 |
| Nearside Front Outline marker lamp missing (4.2.1 (a) (ii)) | 1 |
| Offside Front Outline marker lamp missing (4.2.1 (a) (ii)) | 1 |
| Nearside Front Side repeater not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Upper Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear Rear position lamp|s| not working marker light |1.1.A.3b| | 1 |
| Nearside Upper Stop lamp not working |1.2.1b| | 1 |
| Offside Upper Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Nearside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Brake pipe leaking |3.6.A.1| | 1 |
| Brake pedal creeps down when held under pressure |3.3.B.1a| | 1 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Driver`s seat fore and aft adjustment mechanism not functioning as intended. |6.2.5 |b| |i|| | 1 |
| Nearside Front Upper Outline marker lamp not working |4.2.1 |a|| | 1 |
| Offside Front Upper Outline marker lamp not working |4.2.1 |a|| | 1 |
| Nearside Rear Brake clevis joint insecure retaining pin in clevis pin missing |1.1.15 |c|| | 1 |
| Nearside Rear Brake clevis joint insecure park brake clevis joint has no locking nut |1.1.15 |c|| | 1 |
| Offside Rear Brake clevis joint insecure park brake clevis joint has no locking nut |1.1.15 |c|| | 1 |
| Nearside Rear Position lamp likely to become detached (4.2.1 (c) (ii)) | 1 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 1 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 1 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 1 |
| Rear Drag link end ball joint has excessive play |2.2.B.1f| | 1 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Front Drag link end ball joint dust cover insecure so that it no longer prevents the ingress of dirt |2.2.C.1c| | 1 |
| Drag link end seriously misaligned |2.2.C.1b| | 1 |
| Offside Front Direction indicator not working |1.4.A.2c| | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Offside Front Direction indicator insecure |1.4.A.2b| | 1 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 1 |
| Towbar component insecure |6.6.1| | 1 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 1 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Central Rear Upper Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Central Brake cable damaged Park, snapped (1.1.15 (a)) | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Front Suspension arm ball joint excessively worn lower arm |5.3.4 |a| |i|| | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Exhaust has a major leak of exhaust gases centre to rear pipe in 2 places (6.1.2 (a)) | 1 |
| Offside Headlamp levelling device inoperative (4.1.5 (a)) | 1 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect kick up to o/s (4.1.2 (c)) | 1 |
| Offside Headlamp aim projected beam image is obviously incorrect kick up yo o/s (4.1.2 (c)) | 1 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 1 |
| Rear fog lamp tell tale not working |1.3.1b| | 1 |
| Nearside Headlamp aim beam image kick up to the offside |1.6.B1| | 1 |
| Offside Headlamp aim beam image kick up to the offside |1.6.B1| | 1 |
| Offside Rear fog lamp missing |1.3.2a| | 1 |
| Offside Drivers view of the road through the swept area of the windscreen significantly affected by an obstruction (3.1 (a) (ii)) | 1 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Outline marker lamp not working Centre (4.2.1 (a) (ii)) | 1 |
| Offside Outline marker lamp not working Centre (4.2.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Central Exhaust emissions likely to be affected by an exhaust leak (8.2.1.1 (b)) | 1 |
| Central Exhaust system insecure (6.1.2 (a)) | 1 |
| Central Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Nearside Rear Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Rear Upper Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Rear Upper Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Nearside Rear Brake load sensing valve seized |3.6.E.3| | 1 |
| All outline marker lamps do not illuminate simultaneously with the position lamps all (4.2.2 (a)) | 1 |
| Offside Front Steering arm has relative movement at its fixings |2.2.B.1h| | 1 |
| Offside Front Suspension component ball joint likely to become detached (5.3.4 (a) (ii)) | 1 |
| Nearside Front Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Anti-lock braking system warning lamp indicates an ABS fault | 1 |
| Nearside Front Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Offside Front Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Offside Rear Upper Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 1 |
| Offside Front Drag link end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 1 |
| Nearside Front Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Front Inner Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Brake pivot has restricted free movement |3.5.1k| | 1 |
| Stop lamp|s| all not working |4.3.1 |a| |iii|| | 1 |
| Electronic stability control warning lamp indicates a fault |7.12 |e|| | 1 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Nearside Rear Anti-roll bar attachment bracket/mounting insecure |2.4.G.1| | 1 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint outer |2.4.G.2| | 1 |
| Offside Rear Anti-roll bar attachment bracket/mounting fractured |2.4.G.1| | 1 |
| Offside Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 1 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Offside Headlamp not working on main beam |1.7.5a| | 1 |
| Nearside Rear Anti-roll bar attachment bracket/mounting fractured |2.4.G.1| | 1 |