New Sachs shocks, but no rebound. Which part of shock Absorber 101 am i missing?

[pontiff]

hi all,

I just bought a new set of Sachs shocks for the 6n1 polo as the old OEM ones have no rebound at all as in you push them in and they dont spring back out at all.

Well the new ones I just bought (pics enclosed) are exactly the same, you can push the piston in all the way quite easily, its a little harder to pull it back out again, but you can do it.

I normally buy bilstein shocks and the piston comes under pressure so you cannot really push it in at all which i what I would expect.

Given the box size I would assume that its the way they are suppose to be, but if that is the case, how do they actually work? Isn't the car just going to be riding on the springs like it is currently?

As I say... what I am I missing? I cant see how they would actually do anything? Especially when there is no rebound, you push the piston in and it sits there and does not come out unless pulled.

I have even read the instructions yet it doesnt mention anything about preloading or priming or anything that would suspect they are somehow 'set' different for shipping

Are they faulty? Could someone who knows please enlighten me?