The fuse for the petro gauge can be found in the fuse box. The fuse will be labeled as the instrument panel fuse.
10
F5 20a fuse
check for obstructions in tank interfering with sending unit
Owners hand book.
mate the fuse for the horn is behind the glove box its a green 30 amp fuse witch is marked number F5 in the peugeot 106 hand book on page 76. good luck mate
Faulty sender unit maybe? Or a bad earth.
I might be behind the glove box.
under back seat
Yes.
Tank capacity is 45 litres of fuel.
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