2008 Mercedes s550 4MATIC w221 - there is a rattling from the passenger's door.

Question by gradybracknell posted 2 days 7 hours ago in Mercedes-Benz

Has anyone encountered this before?  I have been told it is from the passenger leather armrest/compartment.  Is this true?  Or is it from somewhere else?  

Very annoying to listen to it all the time....