My 2005 x3 makes a clanking sound when idling when I press on the gas it go's away

Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. So sorry to hear you're having trouble with your vehicle. That clanking sound at idle that disappears when you press the gas could be caused by many things, but my bet's on something like a loose heat shield or an exhaust component rattling at low RPMs. When you rev up, the vibrations change, and the noise fades away. It's also possible that it could be something like a worn pulley, belt tensioner, or internal engine component that settles down as the engine speed increases. Since it's been going on for a month, it's a good idea to get it checked out to prevent any potential issues from getting worse. If you need more advice, have any other questions about your vehicle, or would like to get connected to a RepairPal Certified shop near you, we have you covered. Give us a call at 877-913-1554, and we will happily help you out!