How far have you gone past zero range?

[AdamInKent]

I filled the petrol tank of my A3 tonight just after the range had dropped to zero, the petrol gauge (std size MMI) was flashing one red bar and I’d had a “please refuel now” message. I put in 45.5l to the pump auto-cutoff.

I’d be interested to know whether anyone has gone further into the red than this before refuelling? How many more low fuel warnings does the car give you? Does the range stop at zero or go negative? Have you worked out the tank capacity including the reserve (if there is one)?

 

[KXL]

I've gone for another 20miles on 0 range on a similar class VAG car on previous MQB platform also with a 50litre tank. A petrol stn thankfully appeared. Perhaps have a look here: https://www.confused.com/on-the-road/maintenance/fuel-petrol-diesel-warning-light-how-low-do-you-go
Both VW cars seem to show just over 40miles, but that day it happened, i wasn't keen on testing whether they were right or not.