My wife car started to rattle a day or 2 ago, looking at it it seems to be the clutch on the air con compressor or the aux belt tensioner. Have a look at this video to see what you think - maybe no as it won't let me post attachments. Basically the clutch seems to be jerking/rattling around Any advice would be appreciated. Might be worth pounting out - The air con hasn't been cold for few years and won't hold pressure. I am not bothered about the air con working but don't want the belt to snap. Is it an easy fix?