Neff B1451 Oven Door Sealing?

Hi
When closing the oven door on my Neff B1451 oven , the door does not fully tighten against the top of the oven body and I can feel the heat escaping although this has not affected the cooking results.
There is ca 0.5cm 'slack' ie the door can be manually pushed another ca 0.5cm against the top of oven body.The door and seal look undamaged and not worn.
Is there any way of adjusting the door hinges or door itself ,so that it pulls tighter against the seal at top?