Why is my Audi A1's fuel economy lower than expected?

I have recently purchased an Audi A1 and have noticed that the fuel economy is not as good as advertised. Is there anything I can do to improve it?

Firstly, make sure you are using the correct grade of fuel recommended by Audi. Using a lower grade fuel can significantly decrease fuel efficiency.

Regularly check the tire pressure and make sure they are inflated to the right level. Under-inflated tires can increase fuel consumption.