[elizaio]

My ID4 has just displayed an error warning for the 12-volt battery for the second time in one month.
It was previously "repaired" at the dealership a month ago and I believe they said it was a computer error but now it's happened again.

Anyone else having this problem?
What are you doing about it?
So frustrating!!!

 

[VW TECHNICIAN]

Take it back and let them load test 12V battery....if run quite low on voltage before....it will be just question of time before it will need new 12V battery.

 

[Nai3t]

I'm going to guess it's failing and needs to be replaced.

Just curious – are you in a cold climate? And do you sometimes park for days at a time? Do you precondition your cabin frequently?

I'm just trying to see if there's a pattern to who's 12 volt fails early.

 

[elizaio]

Take it back and let them load test 12V battery....if run quite low on voltage before....it will be just question of time before it will need new 12V battery.

Why does it run low in the first place? Seems like a lemon of a battery to me...

 

[elizaio]

I'm going to guess it's failing and needs to be replaced.

Just curious – are you in a cold climate? And do you sometimes park for days at a time? Do you precondition your cabin frequently?

I'm just trying to see if there's a pattern to who's 12 volt fails early.

I'm not in a cold climate but do park if for days at a time and I don't precondition the cabin. I didn't even know you could do that!

 

[VW TECHNICIAN]

What was done with 12V system last time you were in service . Can you post service ticket ?

 

[Nai3t]

My suspicion had been that letting the ID sit for days at a time between drives allows the 12 volt battery to run down to unhealthy levels before it's recharged by the high voltage system. The alternative – driving it daily – would maintain the 12 volt at a fairly high level, keeping it in the safe zone .

I figured cold temps exacerbates the problem. But I'm just across the bay from you, not unreasonably cold. Mine gets driven daily, however.

What I don't know is whether the 12 volt has any responsibility for high load heating, such as seat heaters or the steering wheel heat. I don't imagine it does under normal preconditioning, when the cabin heater or AC kicks in running off of the high voltage system.

VW has a new, more suitable battery for us that we should be called in for soon. Is suggest taking yours in and having it tested and replaced.

 

[elizaio]

What was done with 12V system last time you were in service . Can you post service ticket ?

It doesn't make much sense to me but here is what the service ticket said:

 

[VW TECHNICIAN]

I would disagree....i have left ID4 couple times for 4+ weeks without having any issues with 12V battery. Despite my experience there could be something happening with his ID4.

 

[elizaio]

My suspicion had been that letting the ID sit for days at a time between drives allows the 12 volt battery to run down to unhealthy levels before it's recharged by the high voltage system. The alternative – driving it daily – would maintain the 12 volt at a fairly high level, keeping it in the safe zone .

I figured cold temps exacerbates the problem. But I'm just across the bay from you, not unreasonably cold. Mine gets driven daily, however.

What I don't know is whether the 12 volt has any responsibility for high load heating, such as seat heaters or the steering wheel heat. I don't imagine it does under normal preconditioning, when the cabin heater or AC kicks in running off of the high voltage system.

VW has a new, more suitable battery for us that we should be called in for soon. Is suggest taking yours in and having it tested and replaced.

Taking it in next monday. Should I ask for the new battery?

 

[VW TECHNICIAN]

It doesn't make much sense to me but here is what the service ticket said:

I would bring it back to service.... if you have error coming regarding 12V battery .

 

[elizaio]

I would bring it back to service.... if you have error coming regarding 12V battery .

it's going back next monday

 

[VW TECHNICIAN]

Taking it in next monday. Should I ask for the new battery?

Depending on what errors you have .... It should be taken out and bench tested under load. If they preform this test it will give them information on 12V battery SOH

 

[elizaio]

Depending on what errors you have .... It should be taken out and bench tested under load. If they preform this test it will give them information on 12V battery SOH

Thank you! I will ask them to do so.

 

[SunWizard]

VW has announced it is doing a recall of all the 12v batteries in EU, and they get a new 'technologically updated" battery. No word on what they are doing in the US about it, see:

VW Statement on facebook

official statement just made by VW on the facebook group: Dear ID. Drivers, In the past few weeks, we have received many similar questions on essential topics. In the following, we have summarized the most important information according to the current status and hope that it will answer most...

www.vwidtalk.com

 

[Warrior]

That announcement goes back to November last year. I've not heard of or received any information about a replacement battery so far.

 

[Spin]

That announcement goes back to November last year. I've not heard of or received any information about a replacement battery so far.

We will eventually all get upgraded 12v batteries.

 

[Mark Magiera]

They were on the Felicity Ace (kidding).

 

[ErickF]

They were on the Felicity Ace (kidding).

Not totally out of the realm of possibilities. I am assuming they wouldn't be locally sourced when they are.

 

[ewiener]

I had the 12V battery warning and when I brought it to my dealer service center, they said they needed to replace a computer module. It's been three weeks now and last I heard they are still working with VW tech support to update the software.