Specialist part · #10104 · 1 pts
In which of these cases are you obliged to replace the tyre with a new one in a passenger car?
aWhen the air vent is damaged.
bWhen there is a thin nail on the head of the tyre.
cWhen disformations are visible on the sides of the tyre.
Why?
Bulges or other abnormal sidewall deformations indicate structural tyre damage and a risk of sudden failure. The tyre must be replaced with a new one. A damaged valve can be replaced separately, and a small puncture in the tread area may be repairable after professional assessment. The photograph shows a wheel wrench being used, but does not clearly show a sidewall deformation.