Help for my electrical equipment problem (307)

Hello friends, my father just called and said there was a malfunction in my vehicle.I learned the symptoms because I am in Ankara right now and I wanted to ask you why it caused this malfunction. Our vehicle 307 XR 1.4 HDI (70HP). On the top of the torpedo, the text on the screen is visible when viewed from the side, but it is not visible when looking at it from the side (there was a spare screen attached, my father was working it right now) .It was not opening the doors from the remote control. Previously, it had caused such a malfunction again because the charging diode's connector diodes burned, which at the time created a slit on the side of the battery. This malfunction I replaced it with a zero charge dynamo last summer but I did not change the battery. The problem was solved. This time it was caused by the battery. I thought it might be caused by the oxidation of the poles or the slit on the battery I was talking about.

oh brother i wish i could understand but I hope it doesn't hurt your head so much

Thank you, I hope it is not a headache.

You must first try the battery. I think it will probably get better. But when we change the screen, it's strange that it gets better. You first replace the battery. If it does not, connect it to the computer and check it, no other problems.