If you can see even a faint yellowish tint on the daytime running light, the light guide is already damaged.
More serious cases occur in taxis that travel for long distances and the lights are turned on when car is standing still.
These are the few lights that may not be restored to near-original condition.
Unfortunately, the result is only visible when it is too late.
However, we will do our best to make sure that the light is usable and that a similar mistake is not repeated in the future.
In the second picture you can see how damage looks like – the yellowish/brownish tint is clearly visible.