206 1.4 HDI Xline Speed and Idle Indicator Installed

Friends, I just bought 206 a month. Last night, I forgot the headlights turned on, I started the battery with reinforcement, but whatever happened, the speed and idle indicator was stuck in the middle. the speed sees 90km as zero starts from 90km to show the speed, the same 3000 starts at idle. Is there a solution for this, they should not change parts unnecessarily if I go directly to the service

my temperature is broken, the car stops at 35 degrees when the car is closed I got used to it later there were masters doing indicator work to find them.

man, is there any non-service method of this job? I guess that while supplementing, I guess it was too much electricity, but I don't understand how this disrupts the gauge setting! I will go to the worst feast service

& nbsp; look at the battery, the electronic systems do not complete the circuit when the battery is weak. there are such different malfunctions.

I will go to the service tomorrow if I do not try and install a new battery