Hi everyone, for many months my 2.0 tdi 150 hp develops an extremely loud buzzing sound when I have around 2800-3100 rpm, anything more or less it sounds fine. This also only happens in gear and not when revving when staying still. Also, when I full throttle it, I can go past the 3000 rpm mark without this buzzing sound. I’ve attached a sound clip of the sound, but is much louder in real life. https://drive.google.com/file/d/1L56V_5wdlxgHgxxTUqAC0n6Wae7vsaGZ/view?usp=drivesdk. Does anybody have any idea what it could be?
