What is the main cause of engine overheating in an Audi?

I recently bought an Audi and noticed that the engine temperature rises quickly and reaches the red zone. What could be causing this issue? How can I prevent it from happening?

There could be multiple reasons for engine overheating in an Audi, such as a faulty thermostat, a leak in the cooling system, or low coolant levels. It is important to get your vehicle checked by a certified mechanic to determine the exact cause.