How to remove fuel level sender??

cdvyas said:

is there any way i could reach it by removing the back seat?? I don't want to make any special tools for it. I just want to remove it with a standard tool. Is it really tight to remove by hand?

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http://www.benzworld.org/forums/w210-e-class/1770953-my-fuel-level-fluctuates-help-please.html
post #3 in above link gives directions on removing fuel level sender, the only way to reach is through trunk and not from back seat. no need for the special tool, large channel lock pliers work just fine. just make sure to align the 2 holes at 12 and 6 o'clock as mentioned in the link from post 2.
before buying new sender, check out the old one for signs of corrosion at metallic parts. might find slight corrosion from ethanol in gas, and that can cause erratic readings. but you will need to get it out of the gas tank first to look at it. good luck.