What are the signs of a faulty Audi A3 timing belt?

I have an Audi A3 and I am concerned about the timing belt. What are the signs that indicate it may be faulty and in need of replacing?

One of the first signs of a faulty timing belt is a ticking or clicking noise coming from the engine. This can be a sign that the belt is worn and has started to slip.

Another sign is difficulty starting your car. If you notice that your car is taking longer to start or is not starting at all, it could be due to a faulty timing belt. This is because the belt is responsible for the movements of the engine's internal components.