...anyone done this? I drive an *old* BMW 3 series. The air con has slowly slowly slowly gone to nothing over about four years. Assuming it just needs re-gassing, I was thinking about trying something like this... http://amzn.eu/d/cUjJKXL It would appear that I could get Halfords or a local garage to re-gas for about £50-£60. I've found an excellent YouTube video which shows re-gassing my particular vehicle, it looks trivial to do. I quite fancy having a go to fix this myself and if successful and I need to do it again at some point in the future I would then already have the hose with pressure dial and thus only would need the re-gas canister (~£20). As a repair, if I cock it up it doesn't really matter as I still have a car that drives. Any thoughts would be appreciated. Ta.