How do I maintain the fuel efficiency of my Audi A1?

I have noticed that my Audi A1's fuel efficiency has decreased over time. How can I maintain it?

Regularly servicing your car will help maintain its fuel efficiency. Make sure to follow the manufacturer's recommended service schedule.

Inflating your tires to the correct pressure can also improve your car's fuel efficiency. Check your tire pressure every month.

Avoid idling your car for extended periods of time as it can waste fuel. Turn off the engine when you are parked and not in use.