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Replace Door Control Module 2006-2013 Mercedes-Benz S-Class W221

Step-by-step procedure on how to replace the door control module on a 2006-2013 Mercedes-Benz S-Class W221.

Replace Door Control Module 2006-2013 Mercedes-Benz S-Class W221
ESTIMATED TIME 30 - 40 mins
DIY COST $ 100 - 150
DIFFICULTY Intermediate

What you will need

Procedure

  1. Remove the door panel. If you need help with this step follow this tutorial firstRemoving the door panel of the 2010 Mercedes Benz S550

     

  2. Locate the control door module on the right side of the inner door panel.The door control module of the 2010 Mercedes Benz S550.

     

  3. Disconnect all the electrical connectors connected to the control door module by pushing the clip and pulling it out.Disconnecting the connectors of the door control module.

     

    Disconnecting the connectors of the door control module..jpg
  4. Remove the wiring harness from the clips on the door control module.Removing the wiring harness to the door control module clip.

     

    Removing the wiring harness to the door control module clip.
  5. Remove the T30 screw on the door control module and slide it to the right to remove it from the inner door panel.Removing the T30 screw on the door control module.

     

    Removing the door control module.
  6. Get the new door control module, line it up to the inner door panel, and slide it to the left to lock in its place.Installing the new door control module.

     

    Installing the new door control module.
  7. Reinstall the T30 screw on the door control module.Installing the T30 screws on the door control module.

     

  8. Connect all the electrical connectors to the new door control module.Connecting the electrical connectors of the door control module.

     

    Connecting the electrical connectors of the door control module.
  9. Hook up the wiring harness to the ports of the door control module.Putting the wiring harness to the clips of the door control module.

     

  10. Reinstall the door panel.Installing the door panel back to the door.

     

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