my turbo shakes/rattles loud at idle, if i give it just a little gas it will stop, i let off and it starts again. Its just the turbo mechanism, and its not the heat sheild or anything else loose making the noise. you can see it, car will be idling normally ( like for a couple seconds after I have powered thorough the rattling before it starts again) and the turbo unit is moving witht the same sway motion with the rest of the motor, then the turbo will start to visibly shake at a much higher frequency then the rest of the motor and it makes a brrrrrrrrrrrr noise. I thought i might just bump the idle up a little so it didnt happen any more but a MB mechanic i talked to said that i should not cause it would mess up how the thing shifts gears and i would mess up the transmission. Did a lot of searching, could not find anyone else with a shaky turbo. Any ideas ?