Lifetime Premium Member
Date registered: May 2006
Vehicle: 2001 E320 - Brilliant Silver/Ash: 107,000+
Location: West Virginia, USA
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Quoted: 6 Post(s)
Welcome to the forum.
Some people have reported a growth of mildew or mold in the network of ducts. There have been solutions posted but I don't remember the details. It involves spraying some disinfectant into the ducts. Try putting "odor" into the search engine and see what comes up.
You could also try changing the cabin filters but I don't think those are the problem. Good luck.
Mercedes Benz - Das beste oder nichts!