Throttle Linkage Damper on 240D

[nategodin]

Hello,
In the process of removing EGR-related components, I noticed that there were some missing pieces in my throttle linkage. I have ordered a pair of bushings (#76) thanks to the recent thread which brought their existence to my attention. I'm also missing the damper, #21 in the diagram below. The car seems to have run fine for the last year without it; does anyone know exactly what the function of the damper is and how crucial it might be to replace? I'm going to check out a parts car this weekend, so I might have the chance to pick one cheap. If I can't get a used one, and it's an important part of the linkage, I guess I'll have to head to the stealership. Please advise.

Thanks,
Nate