I did move the
Ateca one once. Had a great plan to change the front brackets only issue is between Tiguan 1 and 2 they changed the seat rail bracket. It was a device to get the front seat further backwards to get more upfront legroom.
Your issue will be the air bag wiring I reckon. If you look underneath you might see cabling going to the seat. If so you are a bit stuck. If you disconnect that after reconnecting you'd have to clear the airbag warning lights. VCDS /
Obdeleven.