How can I fix my Audi's overheating problem?

My Audi A4 has been consistently overheating, especially during long drives. What could be causing this and how can I fix it?

First of all, make sure your radiator is topped off with coolant and there are no leaks. If that's not the issue, it could be a faulty thermostat. I would recommend taking your car to a trusted mechanic to get it checked out.

Another potential cause could be a clogged radiator or cooling system. I suggest flushing out the system and replacing the coolant with fresh fluid. This should help with the overheating issue.

It's also important to check the fan and fan relay to ensure they are functioning properly. If not, they may need to be replaced. In addition, regularly changing your oil and replacing the oil filter can also help prevent overheating.