Audi A3 E-tron Forum

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 Post subject: A3 ETron SportBack 2017 Dead 12V battery issue.
PostPosted: Mon May 02, 2022 10:26 am 
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Joined: Mon May 02, 2022 10:15 am
Posts: 2
Hello .. I have a 2017 ETron SportBack.
Recently, the car was dead and I took it to the local shop. Not a dealer. They said that the 12V battery is dead. Needed to replace the battery. They replaced the battery. Came home and after 2 days the car is dead again. I jumped the car and started driving.
Again dead after 2 days! Jumped it again and drove to the Dealer. Dealer done the diagnosis and told me that Audi Engineers are recommending to install an Audi provided 12 V battery. I said Ok, and they waited 7 days to have the 12V battery. Installed and run the diagnosis and told me that it is not the battery issue rather the Hybrid Controller is bad!!!!!! $7000 to replace the controller.
I am not sure if this a correct diagnosis or not. Anybody in this forum gone thru this issue? Will be helpful for me for the next step.


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 Post subject: Re: A3 ETron SportBack 2017 Dead 12V battery issue.
PostPosted: Tue May 03, 2022 9:33 am 
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Joined: Mon Sep 14, 2020 10:41 am
Posts: 10
there should be a 8 yr warranty on the electrical bits


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 Post subject: Re: A3 ETron SportBack 2017 Dead 12V battery issue.
PostPosted: Tue May 03, 2022 12:06 pm 
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Joined: Mon May 02, 2022 10:15 am
Posts: 2
The issue is with SX6 high voltage battery control module for Audi a3 e Tron sportback 2017. Not the High voltage battery.


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