Intermittent poor fuel consumption on my 2020 A1 Competition model

[SteveB]

Hi, I have a 2020 A1 S-Line Competition and every now and then the engine / exhaust noise deepens and my fuel consumption drops from around 40-45 mpg  to less than 30 mpg. This last from anything from a few hours to a couple of days and suddenly the issue disappears. I have had the Audi inspect the car but as the issue was not happening at the time they couldn't find a fault. Has anybody else experienced this?

 

Thanks, Steve

[Steve Q]

My advice would be to record the noise for Audi to hear it or let them have the car over a lot nh duration of a week for example. Make sure they give you a courtesy car.