E-Class (W211) 2003-2009

Broken trunk potentiometer arm

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Old Apr 12, 2026 | 11:54 AM
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Broken trunk potentiometer arm

Hi all,
I need some help fixing the automatic trunk closing mechanism on my 2008 E550. The plastic arm connected to the motor is broken, and I'm looking for the diagram so I can 3D print a replacement. I'd rather not buy the whole thing and want to use better material.

this is the part number for the whole unit 2118201597


Thanks!

Last edited by Mohammadmerc; Apr 12, 2026 at 11:55 AM.
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