Totally dead

All Volkswagen ID.3 related discussions
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Joined: Wed Oct 14, 2020 3:52 pm

Re: Totally dead

Post by Avalon » Tue Oct 27, 2020 5:31 pm

I really appreciate the detailed and informative responses.

VW though need to get their act together and both inform owners and get the issue sorted pretty quickly.

ID.3 1st Edition

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Joined: Sat Oct 24, 2020 9:47 am

Re: Totally dead

Post by Stephen » Sat Oct 31, 2020 4:00 pm

This video shows an alternate method of monitoring the state of the 12 V battery in the ID3.

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Joined: Tue Nov 03, 2020 9:08 am

Re: Totally dead

Post by w19ked » Tue Nov 03, 2020 9:40 am

I have the same problem with the 12 volt battery. In fact the car is at the dealer now whilst they 'investigate' the problem. I can't believe that VW released this car with such a fault. I expect that the dealer won't be able to do anything until a fix is available from VW. It's a bit rubbish that you buy a £39,000 car and then have to go out and buy a battery charger to keep it going!

When you plug the car in to charge it, it charges the 12 volt battery as well as the main traction battery. Apart from the continual power drain on the 12 volt battery which needs sorting, what also doesn't help is that once the car's main battery is fully charged, it stops charging the 12 volt battery too. So if you leave the car parked up for a few days with a fully charged main traction battery, the only way to stop your car dying is to take it for a drive or buy a battery charger! Pants!

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Joined: Fri Oct 09, 2020 2:34 pm

Re: Totally dead

Post by scott28tt » Tue Nov 03, 2020 11:08 am

I've learned that many EV models are susceptible to the 12V problem - BEVs such as the Nissan Leaf, plus PHEVs like the Toyota CHR (my mum had this with hers)

It is a shame that VW don't see YET to have learned from the mistakes of other manufacturers, but this is a wider problem and not ONLY an ID.3 issue

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Joined: Mon Aug 31, 2020 2:38 pm

Re: Totally dead

Post by Ph66 » Fri Nov 06, 2020 9:28 am

Hi Guys.

I was planning on leaving my ID3 at Gatwick Airport for 13 days in December - However, that's all been cancelled with lockdown 2.
I was worried about leaving the car for 13 days without charging. Although I planned to charge it on the way at the Ionity fast charge on the M25.

My question, having read about the 12v battery is - would it be a flat battery on our return.
Has anyone else left there ID3 for a long period ?


Posts: 317
Joined: Fri Oct 09, 2020 2:34 pm

Re: Totally dead

Post by scott28tt » Fri Nov 06, 2020 11:08 am

Mine wasn't used for 10 days while waiting for a replacement windscreen to be fitted - though I did do a couple of small charges to the main batteries during that period as I read a post somewhere from a guy who found that doing that would also send some charge to the 12V.

From the number of reports I've read (on multiple Facebook groups and YouTube channels) the 12V issue seems to only affect some cars not all - but who knows...?

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Joined: Sat Nov 07, 2020 6:36 am

Re: Totally dead

Post by blamelewis » Sat Nov 07, 2020 6:58 am

A noob question both to ID3 and cars in general - can you monitor the 12v battery from the car’s software or the app - or do you need to meter the battery terminals directly? We’ve had issues with the alarm going off and one of the possible causes (I read) can be a low 12v battery - so I’m putting 2&2 together... wondering if that makes 12! :)

Thanks for any advice

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Joined: Fri Oct 09, 2020 2:34 pm

Re: Totally dead

Post by scott28tt » Sat Nov 07, 2020 7:28 am

You need a meter from everything I’ve seen and read.

I did read that the 12V gets a charge while you’re charging the car, but not to leave the charge lead plugged in once charging is complete.

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Joined: Sat Sep 26, 2020 7:30 pm

Re: Totally dead

Post by Robsto » Sat Nov 07, 2020 9:39 am

Disconnecting when charging completed is not a very good solution from vw as I charge mine overnight and would need to get up at 4 am Yet another mess up with this car and for all of us who took a chance especially as they are now giving new customers 3500 deposit contribution makes you wonder why we bothered

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Joined: Thu Oct 15, 2020 7:20 pm

Re: Totally dead

Post by DAN142 » Sat Nov 07, 2020 5:40 pm

Where can I check the capacity of the 12v battery please?

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