Is my pano sunroof missing something?

[willy_manily]

Guys,

I've been doing a little reading on the E53 panoramic sunroof as mine has developed an annoying knocking noise (see video below). From what I can tell one of the major issues associated with this sunroof is the tilt function on the rear glass panel. Most people are actually disabling this by removing two hex bolts on the rear.

I had a look at mine in the garage and on mine only the front (larger) glass panel tits up and down. I was under the impression that both the front and rear sunroof panels are meant to tilt? I just purchased the car so i'm wondering if the previous owner has done something to stop this, as the screws are still installed.

So, i've included a video of my sunroof in action and from what I can tell it seems to be missing the mechanism to tilt the rear panel. Can anybody shed some light on this? I'd love if somebody could send me or link a video of their sunroof from the inside of their car.

Moreover, i've attached a video of the sunroof knock that i've been experiencing. It seems to be related the front glass panel and its right above the drivers seat which is so bloody annoying.

Excuse the night time video, not much light in the garage and i'm working during the day.

Sunroof Knock Video: https://youtu.be/_g5sVcuPx78

Sunroof Tilt Video: https://youtu.be/22YcGikwOQE

Regards