[beerman]

ElleB, i think sometimes the fuel light comes on premature if fuel getting low & you go up a big hill or might be down a big hill? & fuel moves around causes light to come on. people here have mentioned there light has came on then latter gone off then more k's & it's came on & stayed on. i've driven 40k with mine on in sydney traffic & as i have stated 100k with it on in the country. but i don't make a habbit of this, it's just i try to fill at same servo in sydney so if light comes on & i have to do 40k to get to that servo to fill. but the most i've got in is 58Lt, i keep the dockets too, i thought maybe the new car 2011 SLX CRDi might be different to my old 2008 SX CRDi but i drove same & did exactly what i did with old car and got 57lt in first fill up, did 97,000k on old car have almost 8,000k on new one. ( less than 8 fill ups )

I have noticed this too. Sometimes the fuel light comes on, and I get home. By the time I start the car the next morning, the light is off and sometimes stays off for 20k. Every other car I have had, if the light is on, its on the next morning too.....

My light comes on at about 40 litres.

[Lakes]

maybe some are different to others, my gauge needle is right at empty with light on. i would estimate @ 40Lt the needle would be somewhere around 1/4 tank mark or slightly less. but i also estimate that from about the first fuel cut out when filling up, to when the fuel is brimmed to the very top of filler kneck. there is another 10Lt's. so with my 58Lt fill first fuel pump cut out would be at about 48Lt's. takes patients to fill right up. i think i've had people complain while they waited but they calm down  and wait. City people.