Dangerous defects are the most severe step of the verdict scale: faults that are a direct and immediate risk to road safety or the environment (EU Directive 2014/45/EU).
Can I drive a car with dangerous defects?
Such a car should not be used on public roads until the defects are fixed; member states may restrict or prohibit its use. After the repair it needs a re-inspection.
How common are dangerous defects?
Relatively rare – a small share of all first attempts. The national statistics give the exact share per year, and every model's verdict card shows it per model – for example Audi A6.
How do they differ from major defects?
Major defects may compromise safety; dangerous ones are a direct risk. Both mean the car failed. The full scale: no defects, minor, major, dangerous.