My Evoque has been teaching me a lesson in patience, and I would like to hear from anyone who had the same thing. It is a 2015 model that I use for the daily commute, and the AC started getting weaker about six weeks ago. A neighbor told me it only needed a top up, so I went to a workshop and they filled it. It was cold for about three weeks and then slowly faded again, and now it is back to barely cool. My wife thinks the car just hates the heat. My brother says gas should never disappear on its own and that something must be leaking, even if there is no oil mark or drip anywhere. A friend who has a Discovery told me his leak was so small that it took two refills before anyone found it, and in the end it was a tiny crack on a pipe near the front. I did not want to keep paying for the same fix, so one night I read about it and opened a page about Range Rover cars on a Sharjah website to learn how the gas, the seals and the pipes work together. It explained that a slow leak can hide for months and that a dye or pressure test is the best way to find it before adding more gas. That made me feel like I had been going about this the wrong way. A colleague then told me to look for a Range Rover AC gas refill in Industrial Area 3, but only after the leak is found, otherwise it is just money going into the air. I thought that was fair advice. So here are my questions. How long should the gas last after a proper refill on a Range Rover, a few months or a few years? Is a dye test better than a pressure test for a tiny leak, or should I ask for both? Could the leak come from the compressor seal or the condenser, and which one is more common on this model? And should I expect the garage to show me the gauge readings before and after the refill? If you had a slow leak on your Evoque, Sport or Discovery, please tell me where it was and what it cost to fix. Thanks a lot.