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My Polo will randomly, every once and then (once every month), temporarily act as if its battery was dead. It will then randomly come back as if nothing was wrong. I don't know what triggers it but is as if it locked down. I don't know if it's a fuse or what, but it's pretty random. Sometimes it lasts for half an hour, sometimes for 1 minute. Getting into the car, the electronic panel near the velocimeter won't even light up. It's not the battery or it wouldnt even recover.

  • Have the car scanned for fault codes and add your findings to the post. – Steve Matthews Jun 15 '18 at 15:29
  • Welcome to Motor Vehicle Maintenance & Repair! – Pᴀᴜʟsᴛᴇʀ2 Jun 15 '18 at 16:48
  • Thanks for the quick response. It's becoming more recurrent. I'll probably buy a new battery and keep the old one as a spare. I'll let you guys know my findings – Turambar Jun 15 '18 at 17:05
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If you have checked the battery terminals and supply cables then what it could be is a failing internal link in the battery.

A loose or broken internal link can do exactly what you describe and time or a jolt or vibration can cause it to dis- or re-connect at will.

Best test is borrow a battery if you can or fit a new one.

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