Welcome to Beoworld.🙂

Both the upper & lower glass panels will be loose. They are held with 1mm thick double sided foam tape (6mm wide) - glazing or car trim suppliers should be able to get you some. To remove the panels along with the frames there is a phillips screw under the left hand corners of each panel, remove this & slide the whole assembly a few mm to the right & lift off. Make sure you keep the frames in the exact order for each panel as the upper & lower edges are different.

Remove the old foam tape from the frames & glass using warm soapy water followed by whatever you can find to get the sticky goo off. Meth's, IPA & acetone are all helpful but careful rubbing with your fingers after softening seems to be the best & least damaging method.

Any damaged/scratched black paint can be touched in with paint stick before applying the new foam tape. Stick the tape to the glass first, then the end pieces which will then allow you to line up the centre sections with an equal gap at each end (they don't meet in the middle).

Chris.

Many thanks, Ill get right on that this weekend when I get some time... much appreciated