Vehicle Construction, Maintenance and Technical Checks
A roadworthy vehicle needs functioning brakes, steering, suspension, tyres, lights and emissions equipment. Tyres must have adequate tread depth, correct pressure and no cuts or bulges; tread depth below the legal minimum, uneven wear and incorrect pressure are frequent question traps. Check pressure when tyres are cold. Brake fluid, coolant, engine oil and washer fluid levels should be checked regularly, and warning lights on the dashboard must never be ignored.
Lighting is heavily tested: headlights must be correctly aimed to avoid dazzling others, brake lights and indicators must work, and fog lights are for visibility under about 50 metres, not for normal night driving. Exhaust emissions must meet limits, and the catalytic converter or particulate filter must not be removed. Seat belts and child restraints must be in good condition and correctly fitted.
A pre-journey check covers tyres, lights, fluids, mirrors, wipers and load security. Faults affecting safety mean the vehicle must not be driven until repaired.
Rule of thumb: the POWDERY check covers petrol or charge, oil, water, damage, electrics, rubber and yourself. Run it before long trips.
Worked example: the brake warning light stays on after starting. Do not drive; the braking system may be faulty and requires inspection.