1997 E320 Carb making noise ?
 

The question I have is, I have a noise coming from the carbarator or what looks like the carbarator that sounds like a rattling noice but it only happens when I take my foot off the accelerator at low speeds there's a silver box on the side of the carbarator can that box make that noise ?

1997

No carb on a '97 E320
 

They are fuel injected. please be more descriptive about the component that makes the noise.

Your car doesn't have a carby, it's fuel injected with an electronic throttle valve actuator, basically the throttle valve is opened via gears and an electronically controlled motor.

The early actuators had a problem where they exceeded production tolerances and caused loud chatter at idle and even stalling issues.

If your car isn't stalling or have any other issues I wouldn't be to concerned.

You don't want to know how much it's worth :(

If it is a loud rattle when you take your foot off the gas it could be your chain has slack in it. Get it checked out. Good luck.
Best Regards,
Brian