The fuel pump and level sensor assembly were both replaced at the OPC and the car was returned to me yesterday. My first stop (0.5 miles away) was to fill up with V Power but after filling, the gauge only registered a little over half full and it remained there. The OPC claim to have added 30 litres of fuel to calibrate the gauge/sensor but my "Bentley" manual says that for 2WD Carreras the amount of fuel needed for calibration is 12 litres, 28 litres being the amount for the 4WD variants due to the different shape of the tank.
Can anyone confirm the correct amount of fuel required for calibration.