We bought this car from new, and have basically been very pleased with it, as it's reliable and cheap to run, but over the last few months, the 'loose' roof lining has caused a horrible thumping noise which can only be stopped by a rear seated passenger pushing up on the ceiling.

It seems light the inner soft material has come 'unstuck' from the metal roof or something causing a sort of vibration?

I did contact Dacia at Basingstoke where we bought it about this, but they only wanted to look at it if they charge for the time, and as they weren't sure how long it would, or what was required to fix it, they would give an idea of cost, so we couldn't do that.