Small item broken from top window

Silverstar

Hello, we have a T@B 320. Build in 2007.  And now a small thing has broken from the top window. There are 4 connectors from the window to the handlers and one of them is broken. I have tried to glue it back together, which did not work as the spring is to strong. I went to our dealer, but he says I need to buy a complete new window for 155 euro, which is a huge amount for just such a little broken piece. Any suggestions? See pictures of the bropken piece and where it is ;ocated. Thank you for your help.