The factory-installed Mercedes CD changer may develop operation problems and fail to play music properly. Whether your Mercedes CD changer is broken or you want an upgrade, removing the changer is not difficult to do. When this happens, you will have to remove it to fix and replace it.
As with any tasks on a Mercedes or other vehicle, when you are dealing with disconnecting and connecting electrical systems, you should always disconnect the negative battery terminal. This will ensure your safety and prevent you from getting an electric shock.
Pry the dash panel from the dashboard. There are two levers on the sides of the Mercedes factory-installed CD changer. Pulling down on the levers will release the radio from the bracket in the dash. You will have to remove the wiring and the antenna cable from the back of the system.
You can replace it with a newer version of a CD changer or insert the same one, once it has been repaired. Slide the player into the installation sleeve of the stereo dock. Pay attention to where the wires were removed and connect the unit's wiring to the leads in the wiring harness adaptor. Connect the antenna cable lead into the antenna detector. Snap on the dash panel to complete the removal and installation.