Hi there,
Just last night I found myself parked on the side of the highway after running out of diesel in a 2009 D5 XC60. There was still 1/4 tank showing on the gauge. Fortunately help wasn't too far away, thanks brother-in-law! We stuck 10L of diesel in it which lifted the gauge to 3/8 and when I filled it up was only able to add 48L.
Because I was only able to add less than 60L to a dead empty 70L tank, it seems more likely that the fuel gauge was correct, and that there is a problem with the pickup. I'm vaguely aware that these cars have a tank that straddles the rear drive shaft so it may be a problem with whatever is supposed to be drawing from both sides.
Is this a function of the fuel pump? Previous owner had evidently replaced the fuel pump just before I purchased the car so I wouldn't have thought it would have failed just 25,000km later.
The car has otherwise driven faultlessly. It runs like a swiss watch and hasn't missed a beat.
Thanks in advance,