This is a DIY video on how to reinforce the plastic woodgrain front door clips.
These plastic clips cost $2 each at the stealership and are notorious for breaking in 1-2 months.
There are 4 clips on each wood trim door piece in the video and they can be bought online for $1.25 from "autohaus az" (google it)
The mercedes part # is 0119884478
www.autohausaz.com/pn/0119884478
After having replaced both front door sides twice, I decided that there must be a way to reinforce these plastic clips....And voila! Here is the video.