Fuel Gauge Inaccurate

[hoodsstalker]

my fuel gauge is giving me inaccurate readings , sometimes it says its one the verge of being empty only for me to turn it on later and say i have half a tank.
i read on one of the forums that the remedy is to clean the sensor , where is it? and what do i clean it with? any other remedies for inaccuracy on fuel gauge?

[shogun]

The sensor for the fuel level is in the fuel tank.
And the info how to clean is on my website. Here a direct link for the E32 but you can use that one w/o prob
http://bmwe32.student.utwente.nl/maxf_website/gauge.htm