Replacing Seat Ibiza 2016 battery

[Sum]

I’ve just bought a seat Ibiza fr 2016 a few weeks ago. Had been getting the 12V battery low sign for quite a while. Woke up today and the car doesn’t switch on.

Any tips on how to replace the battery and coding the car to acknowledge this as well as not losing my memory settings?

Thanks

 

[SaracenUK]

I replaced the battery on a 2014 FR without doing anything special.
Just unbolted it and put in the new one. Nothing lost, all settings still there.
No idea if its different on a 2016 model though.