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Hey guys my BMW e90 330i went down last week and I can’t seem to figure out the problem. I daily drive it and it had been working just fine. It started just fine before leaving the house to run errands but it would not start after being inside Walmart for 30 minutes. I thought I left a light on and it drained the battery but no jumper box and jumper cables would start the car. It does not crank like the battery is completely drained. The battery checks out good at 12 volts and I even took it to Advance Auto to recharge it just in case. Battery charged to 100% and it still reads 12 volts even after sitting for a few days. I changed out the ACS 30g relay but nothing changed. I hit the starter with a metal rod a few times and it almost started. There’s a connection on the starter that seems a little corroded but I’m not sure how to clean it off. The car would start fine every morning before it went down so I didn’t think it was the starter. I always thought that the starter would gradually start giving you trouble before it went out. I included some videos of me trying to start the car and another after hitting the starter a few times. Any tips or ideas of how to find out my issue would be much appreciated. Thanks guys!

https://youtu.be/XlX9VP9WeVo

https://youtu.be/aGQaltX2XA8



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