You can buy new ones
Doc, You can renew the clips for the trim. They are very inexpensive and easy to replace. The most common item that comes loose is the trim strip on the lower edge of the doors. Go to a Benz dealer. Let me know if you have further questions..
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.