The link at https://www.benzworld.org/forums/w220...ght-psngr.html
, post #7, adds written information on removal of the front door panels to accompany Gabby's great video above. The pdf file below has photos for removal of the rear door panel, as well as for replacement of the Door Control Module and the LED interior door handle light. If you prefer a video, it is at post #7 above.
It is not necessary to remove the entire door panel to replace the LED modules in the front doors on some model years. One only need remove the door control module; the interior handle LED clips to the back of it. For instructions for the front door, the video Gabby provided above is excellent. Also see brian rice's how-to at https://www.benzworld.org/forums/w220...umination.html
It is also not necessary to remove the entire panel to replace the rear Door Control Module. Replacement of the DCM is discussed in the pdf.
The pdf file attached applies to cars with the LED module in the photo below. The front and rear door modules are the same, but they are different left to right. The part number for the right side A 220 820 04 21; the left is A 220 820 03 21. It is definitely necessary to remove the entire panel to replace the LED module for the rear doors
. See how in the pdf.
NOTE: Earlier W220s have a different arrangement for the door handle LEDs
; I have not seen it, and except for instructions on how to remove the inner door panel, the pdf will not apply. My car is an '05; if you have an earlier model, please check the part numbers against your model year or VIN before you buy. I do not know when the changeover occurred.
Don't miss Bryan Rice's excellent pdf on repairing this at https://www.benzworld.org/forums/w220...umination.html