Adblue fault no restart after 650miles, Error codes P20BC,P20E8 in Audi A4 (B9) Forum Posted September 28, 2023 You need to add minimum of 5.7 litre and maximum you can add 24 litres to reset it. I would suggest topping up between 7-10 litres. Thanks.
Adblue fault no restart after 650miles, Error codes P20BC,P20E8
in Audi A4 (B9) Forum
Posted
You need to add minimum of 5.7 litre and maximum you can add 24 litres to reset it. I would suggest topping up between 7-10 litres. Thanks.