The W211 pre-facelift headlights can be aimed.
The procedure is similar to this.

Make sure to aim it against the door of a garage, or something similar.

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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