Why does my Audi A4 have poor fuel economy?

I recently noticed that my Audi A4 has been getting low fuel efficiency. What could be causing this and how can I improve it?

One possible reason for poor fuel economy could be a clogged air filter. Check to see if it needs to be replaced.

Another reason could be underinflated tires. Make sure to regularly check and maintain proper tire pressure.

Driving at high speeds and accelerating quickly can also decrease fuel efficiency. Try to drive more smoothly and maintain a consistent speed.