Tried to turn on the leaving home lights on my MK2 Cupra as below. I can get into the long
coding part fine, tick bit 5. Then go back out of the long
coding helper and it’s copied the new code into the box. Press save and it says successful. But then if I go back into it to check it hasn’t actually updated the code and it’s gone back to default

Any ideas?
“
Leaving Home Lights
This feature turns on your lights when you unlock the car (if your headlight switch is on). I believe this option is standard if you have the auto lights option. This also adds an option in the MFD lights menu for how long it will stay on.
Module 09 - Cent. Elects.
Coding
Byte 0
Bit 5 - Assistance Driving Light_Leaving Home active”