You're going to notice a noise difference between a genuine MB door seal and URO. Trust me I've seen it. Inside the cabin it's a lot different with URO vs MB seals. You'll see.

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Only diesels in this driveway.
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k