It's an easy enough thing to do, but VITAL that you don't just delete your existing maps and replace with the downloaded ones - there is a single file on your card that links the card to your vehicle. Follow the instructions here,
MAKE SURE YOU FOLLOW THE INSTRUCTIONS WITH THE OVERALL.NDS FILE.
The maps available on the SEAT portal (https://www.seat.co.uk/owners/about-my-car/map-updates/leon-6p0) are NOT up to date! The ones at SEAT are from 2024
Thanks to
@Tell on here, here are the links to the latest map updates - they are interchangable over the whole VW/SEAT/Skoda range.
November 2025 - "2026" Mib2 High (Seat Plus) release It's here thanks to Briskoda eagle eyes. MartiniB. These are the server links. It's the November 2025 release otherwise called ECE 2026. Release 430 for Europe. 433 for RoW. Note its mib2 high only. Mib1 support in the combined downloads got...
www.seatcupra.net
Download whichever map you want, and use 7z to unzip it to your laptop, in a folder named 2610 (the version of the maps)
Firstly, remove the card and do a FULL BACKUP by copying the complete card to your laptop. CHECK EVERYTHING FROM THE CAR IS ON YOUR LAPTOP.
Go to your folder of the old maps, and go to maps\eec\eec_wld folder. Find the overall.nds file AND COPY TO DESKTOP - LEAVE ORIGINAL WHERE IT IS IN CASE ANYTHING GOES WRONG
Go to the new map folder, go to maps\eec\eec_wld folder and REPLACE the overall.nds with the original overall.nds from your OLD maps folder. Without this file, the card will not be recognised by the car!
DELETE everything on the card - DO NOT FORMAT THE CARD!!!
Copy the entire contents of the new maps folder, modified with your original orerall.nds file, to the SD card - make sure you don't copy the parent folder, just what's in it that you downloaded and extracted.
Everything should now work - replace card in the glovebox unit, switch on the headunit, and do a soft reset by pressing and holding the on/off/volume until the unit restarts.
If it does go wrong, just delete (not format) and replace with the original maps you have backed up
Hope this helps