E46 wouldn't turn on and gas/temp needle stuck

[mexicant123]

Ok so today I decided that I was spontaneously going to go get food. When I got in my car to turn it on, it didn't. None of the lights or beeps that normally turn on did and I noticed that the needles for both the gas and temperature were stuck in the positions they were in when I last turned the car off. I immediately came here and a bunch of people were saying the battery was bad, the fuses were bad, the starter was bad, etc. I tried all of it and none of it was working so I gave up and decided I was going to walk to the nearest autozone to get my battery checked.

When I popped open the trunk to get the battery out the trunk light had not turned on. When I went to disconnect the battery I dropped the wrench on the terminal on accident and sparks went flying. Apart from the wrench being hot I noticed that the trunk light had turned on. I immediately went to check the needles and they went down to the off position. I was like "why not" and tried to turn the car on. Miraculously it actually turned on. So, my question to everyone is what on earth happened or what did I do? I have no idea nor does my dad and I want to know if anyone else has experienced this and what happened afterwards?

Any info is very much appreciated. Thanks guys!

[X3456]

Please Clean the battery posts and tighten the battery cables...cheers!

Sent from my SM-J727T using Tapatalk

[jclausen]

And when working on the battery be careful with the wrench