# Sudden 12volt loss **URL:** \ **Category:** Uncategorized\ **Created:** [July 13, 2026, 3:12pm UTC](https://community.electricforum.com/t/sudden-12volt-loss/30554 "2026-07-13T15:12:59Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Tdawg](https://avatars.discourse-cdn.com/v4/letter/t/3be4f8/32.png) [@Tdawg](https://community.electricforum.com/u/Tdawg)\ **Post date:** [July 13, 2026, 3:12pm UTC](https://community.electricforum.com/t/sudden-12volt-loss/30554/1 "2026-07-13T15:12:59Z")
I recently bought a 2002 e825 4 passenger that ran fine but had no lights, horn or wiper. I traced down all the fuses and connections, cleaned and replaced everything at all was good. Today I was putting on new wheels and decided to plug it in. Charged for a while and when finished at 100% it sounded the alarm. I unplugged it and had to leave the car for a few hours, when I got back none of the 12 volt system works now. Fuses look good but now I am at a loss. Any help or suggestions would be appreciated. Thanks ---
**Author:** ![AssyRequired](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/assyrequired/32/7621_2.png) [@AssyRequired](https://community.electricforum.com/u/AssyRequired)\ **Post date:** [July 13, 2026, 11:52pm UTC](https://community.electricforum.com/t/sudden-12volt-loss/30554/2 "2026-07-13T23:52:31Z")
> cleaned and replaced everything at all was good. Such is the problem with doing shotgun repairs. I like to hit one thing at a time until things start working and apply attention at that point. If it fails again, it makes for a good place to go back to. Do you have a meter? Do you know if this car has the DC wiring/converter update? ---
**Author:** ![JarJarJava](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/jarjarjava/32/15158_2.png) [@JarJarJava](https://community.electricforum.com/u/JarJarJava)\ **Post date:** [July 14, 2026, 12:24am UTC](https://community.electricforum.com/t/sudden-12volt-loss/30554/3 "2026-07-14T00:24:35Z")
> [@Tdawg](#): > > Sudden 12volt loss I’m sorry for your loss. My condenses. It’s in a better place now. No more pain. And it’ll be with it’s favorite dog again. rAmen.