bloody annoying - roof sound

first it was squeaking… B+C fixed…

now its ‘knocking’… it kind of a dull knock, maybe even a creak… seems to happen randomly, doesnt matter if going over a bump or not… but the sound is definitely coming from the roof (having excluded the seats, seatbelts, windows, doors, engine bay, dashboard… etc)

any others experienced it? how did you fix it!!??!

Congrats, you have yourself an S1 feature!

Could it be the fuel inlet? That use to make a noise on some S1s and people thought it was the roof.