Ok good to know. The Diono seats are all the same when it comes to the bottom and installation. The adjuster (link below) is a pad that helps the Diono/Radian seats sit more upright. Without it the seat is a bit reclined. Meaning, it'll definitely fit in the Tiguan with or without the adjuster. Good option for OP. Here's the angle adjuster... https://us.diono.com/accessories/angle-adjuster |