It sounds like metal to metal and feels felt at the front left. It’s also strange that the noise gets louder when you turn on the air conditioning system. Turns it off significantly quieter or maybe not at all. I initially suspected the wheel bearing, but I’m honestly not sure. Another problem: the engine loses air somewhere in the front. I have the connection between the engine and the engine. Exhaust system suspected. Have you had any experience that there is a lot of wear? Thank you for your help. Greetings The peace in person