Bosch WFD 2060 washing machine door seal replacement - help?

Hello,

The door seal on my Bosch WFD2060 washing machine has a small chunk missing from it at the bottom so that it leaks. In the first instance i intended to simply turn the seal around 180° so that we can hopefully use the machine whilst awaiting spares.

The outer edge of the seal is secured to the door cutout using a simple circular wire spring clip. I have undone this and now have the outer edge free, but cannot see how the inner edge of the seal attaches to the drum - any ideas out there.