Great Post !! I actually thought about going for a different color led but at the end decided to stay with the OEM. I started the project thinking all I had to do is remove the dcm but then had to go through the same exact steps as you did exept the silicon part since mine clipped in place very securely. Unfortunately, still have to do the rears

 

Hey everyone, sorry to bring back an old post but just wanted to give an update. My drivers door it's flicking again. In few words the oem only lasted four years since it's replacement. So I said let me call the dealer and get a price on it. Guess what, price quadrupled since last time I changed it. Now they are asking over a hundred dollars for one lol... It is only an led bulb wonder if it was made with gold flakes

 

My replacement LEDs are still working well after 4 years.

You inspired me to add the DIY How To Repair the W220 Interior Door Illumination Module here https://w220.ee/Interior_Door_Handle_Illumination.