When you collect your hire car it is essential that you inspect it for damage before driving away. You will be presented with an existing damage report that will identify any existing damage. Should you find any damage not already noted on the report, you should go back to the rental office and request any further damage is noted on the report and signed for by the rental agent.
We advise you also take photos of the car BEFORE accepting delivery / driving away. We appreciate that you are likely keen to get on with your holiday, however taking a few minutes to inspect and document any existing damage could save you an argument and potential damage repair bill later down the line for claims for damage that you did not cause.
Read more here on how to swap a rental car if you are not happy with its condition.