Ok so anyone know how i can fix me rear wiper?

Park is wrong, and my help should be called IGOR :yum:

Nice bit of u tubing ! I had exactly the same problem on mine about a year ago, basically your wiper motor is faulty and the swept area is reduced. I striped my down and re-greased it, but it made no difference. You can move the wiper arm round on the spline, usually need a puller if its never been off. This gets thea arm to park in the correct position, BUT it will then only sweep up to around the 11.30 position. Best to get a new motor, but be warned a multiwagon with an the opening rear window has a totally different wiper motor to the 1 with a 1 part tailgate.

Have sometimes the same issue with the twin split tailgate, but that is when the cam lines up correctly.