How to diagnose coolant smell in my Audi A4?

I'm noticing a strong smell of coolant coming from my Audi A4. What could be causing this and how can I diagnose the issue?

First, check your coolant reservoir for any leaks or cracks. If there are no visible issues, it could be a problem with the radiator or a hose. I would recommend taking your car to a mechanic for a proper diagnosis.

Another possible cause could be a faulty radiator cap. Check for any signs of damage or wear on the cap and replace if necessary. If the issue persists, it would be best to have a professional check the coolant system.