Audi0609

I need to replace 2015 audi a8L 4.0T car battery. Replacing battery is straight forward but I heard that I need to code using VCDS. I do not have this cable.

do I need to code? Or can I skip this part?

uberwgn

Did you permit the existing battery to go completely dead?

Audi0609

Forgot to add.... if VCDS is required, it will be helpdul if some one can give me coding steps for my car

Audi0609

My battery is not dead yet but I should start learning now. This way when my battery is fully drad... I can easily replace and code it

uberwgn

Are you going to purchase the battery from an Audi dealer?

Audi0609

I'll get the part number from audi dealer and buy it online

uberwgn

Only a dealer-sourced battery will have a code. I doubt an on-line Audi re-seller will ship a battery due to acid, weight, etc. You could check with one of our forum sponsors.

You can track down your local VCDS person and see if they could help with the coding process. It's not absolutely critical if the battery hasn't started to shutdown various sub-systems on the car (activation of the BEM system).

TinyElviss

How many miles are on it?

Audi0609

around 36k

Audi0609

thanks. I checked with local audi dealer and they charge $900 to replace it... which doesnt make senses bc battery it self is for $400 (on high range).

i been looking some videos online and coding doesnt seem too bad, long as you write down original values