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Audi A3 E-tron Forum • View topic - Battery not fully charging/draining fast?

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EVDavid
 Post subject: Re: Battery not fully charging/draining fast?
PostPosted: Fri Nov 19, 2021 10:02 am 
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Joined: Tue Aug 02, 2016 4:48 pm
Posts: 2
I currently have a 2016 with 57K miles on the ODO. I only have 5 of 8 charge indicator lights and a claimed max EV range of 12 miles.
The car is quickly becoming unsellable. It's been great until early last year when the decline started. I got the battery case recall done and it's going downhill fast.
I don't like hearing that Audi is mostly turning their back on this issue.
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lacrojean
 Post subject: Re: Battery not fully charging/draining fast?
PostPosted: Sat Dec 11, 2021 10:01 am 
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Joined: Sat Dec 11, 2021 9:50 am
Posts: 2
My 2017, 110000km car seemed fine last summer, with a real 32 km EV range. But with the cold season, I noticed the capacity declined to a max charging session on 7/8 bars and 5.5kWh only. In the same mild winter conditions, 2 years ago, I used to get a real range of 22-23 km (heat, lights). Now, it does'nt do better than 16-17 km.

Any idea if fast charging (240V) decreases capacity more than slow charging (120V)? Could there be an issue with the charger itself?
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hunter
 Post subject: Re: Battery not fully charging/draining fast?
PostPosted: Mon Dec 19, 2022 3:52 pm 
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Joined: Mon Dec 19, 2022 2:47 pm
Posts: 3
also having issue with HV battery showing 7/8 bars at full charge and only getting 10mi of EV with all accessories off.
Has anyone had the A3 e-tron battery checked for capacity in either kWh or Ah? Dealer does not seem to know how to do this. There should be spec for new [max] and another for replacement [min]. Its rated 8.8kWh, with usable of about 7-7.7kWh. I'm guessing it should be replaced when it degrades 25% to about 5.8kWh usable.
Anyone know what the real specs are?
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bruuster
 Post subject: Re: Battery not fully charging/draining fast?
PostPosted: Wed Dec 21, 2022 10:35 am 
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Joined: Thu Oct 24, 2019 12:34 pm
Posts: 53


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twinpowers
 Post subject: Re: Battery not fully charging/draining fast?
PostPosted: Wed Mar 22, 2023 1:45 pm 
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Joined: Mon Mar 20, 2023 1:55 pm
Posts: 3
I am experiencing the same thing with my 2016 with 52,000 miles. GOM shows 15-17 mi with full charge. Gauge shows 7/8 bars. Actual miles: 9-10 per full charge. I took it to Gwinett Audi, they held it for a week, drove it around the block and said it was fine. They charged me for the "diagnostic" and gave me no paperwork or report. I was blown away by how bad the service was.

I have been talking to AudiUSA eTron support and they want me to take it to another dealership. I am going to try Greenville Audi, they have been super nice so far, so I am going to drive the 2 hours up there this weekend.

I found this which seems to indicate Audi knows about the problem but might not know how to fix it.

https://static.nhtsa.gov/odi/tsbs/2020/ ... 5-0001.pdf

Has anyone figured this out yet???
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bruuster
 Post subject: Re: Battery not fully charging/draining fast?
PostPosted: Thu Mar 23, 2023 8:27 am 
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Joined: Thu Oct 24, 2019 12:34 pm
Posts: 53
Update: Brought car back in for EV battery range issue. I also brought proof via photos of dash showing it only charged to 15 miles and actual range was 11.
Car was in shop for 2 weeks loaner provided free of charge. New EV battery pack installed. Dash now charges to 28mi but actual EV miles are about 22-23. I'm a happy camper.
My advice: Just don't take no for an answer with the dealer.
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twinpowers
 Post subject: Re: Battery not fully charging/draining fast?
PostPosted: Thu Mar 23, 2023 8:32 am 
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Joined: Mon Mar 20, 2023 1:55 pm
Posts: 3
Wow! Great to hear! I am going in this weekend. Fingers crossed.

What exactly did you take photos of to offer proof?
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bruuster
 Post subject: Re: Battery not fully charging/draining fast?
PostPosted: Thu Mar 23, 2023 9:14 am 
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Joined: Thu Oct 24, 2019 12:34 pm
Posts: 53
Read this thread on AudiWorld. It has photos.
Need advice before going to dealer about EV battery replacement
https://www.audiworld.com/forums/audi-a ... t-3051633/
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hunter
 Post subject: Re: Battery not fully charging/draining fast?
PostPosted: Fri Mar 24, 2023 7:15 pm 
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Joined: Mon Dec 19, 2022 2:47 pm
Posts: 3
finally did get EV battery replaced in early March.
@bruuster did dealer provide capacity measurements either before or after?
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bruuster
 Post subject: Re: Battery not fully charging/draining fast?
PostPosted: Fri Mar 24, 2023 8:35 pm 
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Joined: Thu Oct 24, 2019 12:34 pm
Posts: 53
No data provided on the service sheet. They just said they agreed with me.
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