Hi, new guy here...my father bought a ml 320 with a bose radio installed, a cd were broken inside and it wasn't working now we took them out got the magazine out but there is a cd error message on the radio, has any you come across this before

 

As I can see it, the lens must have been damaged due to the cd that you said was allegedly broken inside the player. If you have a warranty card, you can ask the dealer if you can have it fixed or you pay them for the lens replacement if it's not covered.