Dear Azza S.,

Here is a checklist for you to inspect your tyres to know if a replacement is needed.

1. The tread is worn beyond the recommended tread depth levels.

2. The sidewall is damaged.

3. Any hole in the tread is greater than 6 mm in diameter.

4. The bead is damaged or deformed (the bead is the edge of the tyre that sits on the wheel).

5. 'Feel' your car when driving. A rough ride (the car doesn't goes as smooth as it usually does) may indicate tyre damage or excessive wear.

You can read this article to find out more:

https://www.wikihow.com/Know-when-Car-Tires-Need-Replacing