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check ground on fuel tank
get a new dial cluster from eBay it a peugeot problem
There typically isn't a separate fuse for the fuel gauge - it's a shared circuit, and you'd lose a lot more than your fuel gauge if that circuit lost continuity. If your fuel gauge isn't working, you're more likely looking at a bad fuel sending unit, not a fuse.
check for obstructions in tank interfering with sending unit
usually under the the drivers side rear passenger seat, lift off a large black plastic cover and underneath you shall have your fuel gauge sender unit + pump if it's a petrol.
A flashing egg-shaped symbol at the lower half of the Peugeot 405 instrument panel means water in fuel filter.
My guess would be Low Fuel Warning Light. But saying that, RED usually means STOP. So it may very well be something else. I suggest you contact a Peugeot dealer to find out for sure.
were do i find the fuel filter on a peugeot 307 1.6 petrol
How do you change fuel filter on peugeot 806 diesel?
Its usually in the fuel tank attached to the fuel sender gauge,you can access it by removing the rear seat base.You will see either 1 or 2 large plastic inspection covers,remove these and you will see it
where is the fuel cut off switch at on a peugeot 306
Faulty sender unit maybe? Or a bad earth.