Why does my Audi A1's engine constantly overheat?

I've noticed that after a few minutes of driving, the engine temperature gauge on my Audi A1 quickly rises into the red zone. Even after multiple trips to the mechanic, the issue still persists. What could be causing this problem and how can I fix it?

The most common cause of engine overheating in an Audi A1 is a malfunction in the cooling system. This could be due to a leak in the radiator, a faulty thermostat, or a blockage in the system. It is important to address this issue immediately, as prolonged overheating can cause serious damage to your engine.

Another potential cause could be a faulty water pump, which is responsible for circulating coolant throughout the engine. This is a common issue in older Audi A1 models and may require a replacement to fix.

It's possible that the issue lies with the temperature gauge itself. If all other components of the cooling system have been checked and are functioning properly, it may be necessary to replace the gauge.