It always best of you can use a memory saver of some sort. Most of the newer VAG transverse cars I just attach a jump pack or trickle charger to the underhood fuse box, the main lead plate up front (ground anywhere you can, so long as it does not hinder you getting the battery swapped out).
Just easier that way. No clock to reset, no windows to reset, no goofy idle relearns or throttle adaptations to run through, etc. Which is common on many modern cars. Nissans are the worst, they completely forget how to idle if you do not save the memory.