How to fix a faulty radiator in my Audi A3?

I noticed that the radiator in my Audi A3 is malfunctioning and not cooling the engine properly. It's causing the temperature to rise and I'm worried it might lead to bigger problems. What can I do to fix it and prevent any further damage?

It's important to address this issue as soon as possible to avoid any major damage to your engine. First, check the coolant level and make sure it's at the recommended level. Also, check for any leaks in the radiator hoses or connections. If everything seems fine, it's possible that the radiator itself needs to be replaced. It's best to have it inspected by a certified mechanic to determine the exact cause.