Over the weekend I noticed the drivers side window makes a slight noise when going over a bump in the road, rather like the final "zuuumpp" noise as it settles into the rubber seals after going up again. When I push against it, there is no movement (that I can detect).
However, yesterday evening in the cold again, after an relatively warm weekend, it had stopped. It must be something that is affected by hot and cold weather and I have heard chatter about plastic clips failing, that hold the window to the rails?
Anyone shed any light on this?