Peugeot 306 Fuel gauge problem?

In my 2000 model automatic gear 306, when the gas gauge shows quarter or half tank, when the 5 10 km is driven, the gas gauge starts to move forward. fuller his belt at longer distances. When the contact hurts, it shows full again, but when it cools, it returns to its normal level. the samsamra was complete. The km officer was completely changed, but not fixed. a friend who has experienced this problem has opened a subject in the past years but no solution has been found. Does anyone have an idea about this topic?

There may be a problem in the panel or electrical installation, depending on how the switch changes.

There are troubles in the indicator of the pejos or I think there is a problem.