Dave, a lot of plastics are formulated with chlorinated esters and the like, certain type of PVC plastic and so on. I remember reading somewhere tha MBZ did not use the flourinated types of plastic in the trim, that they installed in their cars. An environmentally friendly initiative.

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Jeff Lawrence
1989 300e
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.