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Question 3900

When must a motor vehicle's light bulbs be replaced?

  1. Always before passing the vehicle inspection.
  2. Only if they break.
  3. As soon as their light intensity decreases.
Show answer and explanation

Correct answer: As soon as their light intensity decreases.

A bulb gives off less light with use. Replace it as soon as you notice it getting dimmer, without waiting for it to burn out or for the ITV. In the image, one headlight gives off a yellower, weaker light than the other, and both should shine equally brightly.

Revisa y ajusta los faros antes de irte de vacaciones: prevención, visibilidad y seguridad