Hi everyone.
Sorry for my (very) late response. I kinda forgot about this topic...
@Pierrick: The mechanism to adjust the stow position of the lift when it slides into it's housing is indeed very sensitive.
You can change it with the 'increase stow level' clamp that is on your picture.
If that clamp is set correctly (very sensitive, 1mm is a lot), the cylinder does not rub against number 3 on your first picture. But if you lower the stow position too much, the lift can't be stowed anymore, it gets stuck when it's almost al the way in (sticking out about 7cm).
I regularly have the issue that the stow position is too low, then the lift gets stuck when stowing... This is mostly caused by my dog that jumps on the lift when it is not completely out yet. This screws up the setting of the clamp...
I now have a good setting on the clamp, in which it stows completely, and doesn't scratch number 3 (barely, half a mm of room).
@red dragon, here are more pictures from the inside:
The 4-way joystick:
Here you can see the permolock, and the amount of floor that was removed. The box on the floor (below joystick) holds an extra battery for joysteer, and some of the electronics.
Here you can see the other chair that is on a permolock as well. The chair can be moved to the driver side, and my wheelchair can be placed on the right side so I don't have to drive.
The engine is indeed a 2.0tdi dsg 140hp. It consumes between 8.5 and 9.5 l/100km. The underfloor lift blocks alot of wind I think, so this can be less if you have a lift that is in your car.