We need to figure out if its the servo... #5
Could also be dirty, or clogged perhaps...stock open/closed.

There is a tiny little filter in it.
You can see it here: https://www.turnermotorsport.com/p-5...uine-bmw-part/

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2003 BMW X5 3.0i -- MT5, 3.64s final gears, H&R lowering springs, K-Mac bushing kit
2007 BMW X3 3.0Si -- MT6