A6 3.0TDI fuel tank question
I need to confirm whether this is a problem or not. Let me describe my concern.
I was traveling a lot for last 2 weeks (5000 km) across the Europe and during refueling I spotted following thing.
1. When fuel tank meter was at "red" on R letter, I could put 58 liters of diesel into the tank, when fuel pump stopped for the first time. Fuel computer was showing 0 km on tank when refueling. After refueling, fuel tank gauge doesn't align with "F" (1-2 mm away from F mark), and after 20-30km of motorway driving at 130km/h constant speed, it drops between 3/4 and F marks.
2. Same situation but this time, I'm trying to squeeze as much fuel as possible after first fuel pump stop. I'm able to put 10 liters of fuel more, which ends at 68-70 liters. This time fuel tank gauge goes 1mm past F mark and it will stay around this mark for 80-110km since refueling.
As far as I'm aware, A6 3.0 TDI are equipped with 80 liters fuel tank as standard? Mine car is 2005 - UK specs. If that's correct, why I'm able to fill 60 liters even the fuel gauge says the tank is dry?! I can fill up to 70 liters but fuel pump stops every 0.5-1 liter I tried to put above 60 liters mark?!
Have anyone noticed same thing with their A6 cars with 80L tank?
Audi A6 Avant (4F) 2005 UK spec
3.0 TDi Quattro
Retrofitted: Anti-dazzle rear view mirror, DVD Navi, APS+