How to fix an overheating problem in my Audi A4?

I've noticed that my Audi A4 is getting uncomfortably warm while driving, especially in stop-and-go traffic. What steps can I take to address this overheating issue?

First and foremost, make sure your coolant levels are topped up and there are no leaks in the system. If this doesn't solve the issue, it may be time to have your radiator flushed or replaced.

Check your thermostat to make sure it is functioning properly. A faulty thermostat can cause your car to overheat easily. Consider getting a replacement if needed.

Adding a high-quality coolant or water wetter can also help improve your car's cooling capabilities. Just be sure to follow the manufacturer's recommended ratios.