W202 C280 Fuel Gauge Sticking
My fuel gauge has started behaving as if it is sticky. I turn on and start up and the needle doesn't move; sometimes the orange light is on at the some time but not always. Switching off and back on sometimes makes it behave normally; other times after I have been driving a few minutes the gauge springs into life. I use BP Ultimate unleaded, and I had just filled the tank before I noticed this for the first time. I have read that W202 senders are known for this problem; also that using Redex or similar cleaners can cure it, although that seems to apply mostly in cases when people have been using supermarket fuel.
Is it a DIY job to remove and clean the sender? What about fire and explosion risks when working on the fuel tank? Is there a writeup with photos showing how to do this? On a scale of 1 to 5 (five being the most), how difficult is this job?