Rear windscreen wiper / door catcher – Laguna K56W Grandtour 1.9 dCi

Hello guys! Since our Laguna now works great again, we want to “repair” the little things that disturb us. Problem 1: Rear wiper Our rear wiper almost always hangs up with the third brake light, since apparently the wiper is too long. Apart from that, it only wipes in the upper area, below the wiper does not touch the disc. (Does it even lie on the wiper arm/spring?) Can someone tell me what length is provided? re: On e*ay there are various conversion kits for rear Aerotwin wipers Content: Wiper arm + wiper itself. Has anyone tried to mount another arm? – resp. – Does someone have any idea which car is similar to Laguna? Problem 2: Door catch belt passenger side The door on the passenger side cracks very loudly when opening and closing. I think that something is damaged by the door catch tape or the door catch tape itself. Did anyone already have that? What do I have to get for parts? I already disassembled the door panels etc. without having the parts then. Would be great if someone could help me! Thank you! LG Michi