NEFF Oven. I have a single oven, model B1422. In this oven there is a light, this light has

Question

I have a single oven, model B1422. In this oven there is a light, this light has failed, i tried to remove the glass but no sucess,
The light fixture is at the top right hand corner of the ven.
HOW do i replace the failed light (lamp)