Where is the best place to find body parts 2000 Mercedes ML430?

Question

What is the plastic piece that runs from the roof line down along each side of the back lift window, both of mine are cracked a want to replace

Answer 1

The outside D-pillar covers are only available at the dealer......they cost around $120. each.

Answer 2

If I were you, I'd go directly to a Mercedes-Benz dealership to buy the parts.