I have a 2000 Mercedes c280. Gas gauge is not working and need to order a Fuel sending unit. There is a choice of left or right. Is this determined by what side the gas tank is on?

What is your question?

Fuel gauge is always on empty

What makes this problem better or worse?

gas guage not working

How long has your 2000 Mercedes-Benz C280 had this problem?

after mechanic replaced fuel filter