peugeot 206 gti gas gauge speedometer km counter

The yellow light on the gas indicator is on, but the indicator does not go up or down, the speedometer goes up and down momentarily, it does not work. The km digitali 134152 is also plugged in, what can I do?

Sounds like there is a problem with the electrical system. but first, have the error codes look at a special service with the original software. The mileage sensor may be faulty. Vehicles like the GTI, unfortunately, are a matter of time to encounter such problems, since our country is very tampered with.