03tdiwagon
Veteran Member
Is this the first 155km you've put on the car? You may want to run a full tank through it and hand calculate your mileage if so. Without venting that first half of the gauge can drop pretty quick from what I recall. I've never owned a VW with a perfect fuel gauge, it has always been dropped faster on the first or second half of the gauge for me.
i finished my first tank and i completed with 725k km so its not to bad actually it held at the the 1/2 tank mark for a bit...... it went from full to half at about 300km and then half to empty lasted another 425.
i looked up the venting method and i will be eliminating the valve that is there to prevent having to do this in future