Intermittent poor fuel consumption- A1 competition model 2020

Stevedb

New Member
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
 
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