Hi. I’ve just bought a 2016 GLA. It has a panoramic roof, which I noticed an audible rattle from. It had to go back to Mercedes for a different issue, so I got them to check this too - they said something was loose and they have adjusted it/rectified this, but there is still a slight annoying rattle when drinking with the roof closed. Has anyone else experienced this and how did you rectify it (other than driving around with the roof open, as it’s a little chilly for that at the moment!). Thanks in advance.