In Serbian vehicle safety and regulations, when is a chemical foam tyre repair sealant kit incapable of repairing a flat tyre?

Answer and explanation

Correct answer: C. When the tyre sidewall is torn, punctured, slashed, or when the tread puncture exceeds 4-6 mm

  1. Step 1: Chemical sealants cannot seal sidewall blowouts or large tears; structural sidewall damage demands tyre replacement. Answer: When the tyre sidewall is torn, punctured, slashed, or when the tread puncture exceeds 4-6 mm. Why not the others: the alternative options do not represent statutory provisions under Serbian vehicle safety and technical regulations.

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