Battery Replacement

[Walker Shippy]

I went to Auto Zone to get my battery tested as my 2012 B8 S4 was being a little sluggish to start up. The guy told me that my battery was fine but I knew better and figured that I had a few weeks before my battery went out. As I predicted, my battery went out completely today and I wasn’t able to start my car. I am looking to replace the battery myself as I hate having other people work in my car but I have a few questions before I can do it. Here are the questions:

I have heard a few things about the ECU needing to be reset after a battery change or else the car won’t start on an Audi. Is this true?

What battery or type of battery would I need to buy as a replacement if I were to do this myself?

Are there any other things I need to worry about or can I simply replace the battery with relatively no worries?

Thanks a lot guys. :)

[esimp2k]

Tons of threads on this. Literally just replied to one earlier. Buy one at autozone they say is for your car, slap it in, don’t code it, done.


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[Walker Shippy]

Alright bet, thanks my guy.

[2by2handsofblue]

Alright bet, thanks my guy.From what I read, you need a vagcom to have the battery reset. Theres a serial number on the battery. Through vagcom, you delete the old battery number and replace it with a new 1.
YouTube it.

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[2by2handsofblue]

Without doing so can shorten the battery life

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