What should you do when your vehicle makes unreasonable noise?

1. Correct answer: A vehicle making unreasonable noise should not be driven.
2. It is permitted to drive a vehicle making unreasonable noise under the approval of the local authority.
3. It is permitted to drive a vehicle making unreasonable noise in a freeway.
4. It is permitted to drive a vehicle making unreasonable noise unrestrictedly.

WhyDriving a vehicle that makes unreasonable noise is forbidden. It is a sign of a fault.