Why is the mpg of my Audi A2 decreasing after a few months?

I recently purchased a brand new Audi A2 and it had great fuel efficiency. However, after a few months of driving it, I noticed that the mpg has dropped significantly. Why is this happening and how can I improve it?

One possible reason for the decrease in mpg could be due to the break-in period for the engine. As the engine gets used to regular driving, it may become more efficient and improve your mpg. Make sure to follow the recommended break-in guidelines.

Another reason could be due to changes in your driving habits. Consider if you have been driving more aggressively or in traffic more frequently, as this can decrease fuel efficiency. Try to adopt more fuel-efficient driving techniques.