Is this my Shock Absorber? It's rattling, how can I fix it?
 

https://cimg6.ibsrv.net/gimg/www.nor...21c26ec518.jpg
I'm guessing that this is my Shock absorber (Stabilus Stab O Shock) and it looks to have broken apart from something. I don't feel much difference in ride quality but it does make an annoying rattle noise. I don't see what the circular part attaches to and I'm not familiar with suspension setup but this is on the passenger side. Any help on how to fix this? 2004 R53

Thanks. I tried checking the other side to see the positioning but I couldn't seem to locate that one, looks like there's more parts blocking the view. Anyway, I've never done work on suspension components so there's a slight learning curve for me on this, but I'll try more research.

it seems to be a hood shock. it cannot be your suspension because you wont be actually able to drive the car.

Well I feel like I'm being trolled, but that is the shock absorber for your belt tensioner. I think you can find just the shock absorber part, but here's the whole tensioner.

No trolling here, looks like that's what I need. I appreciate the help, hopefully my car survives until I can get it delivered. Thanks.

Interesting that they have that on a tensioner. Learn something new everyday lol

It is a spring loaded tensioner; the shock is there to control oscillation.

looks like BMW didn't design it as it is an AC Delco part!

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editorial comment:

my first thought too was , "that's not a suspension shock" but beyond that was not sure what I was looking at.

Note for picture taker: while pictures help A LOT, consider having something in a picture of the problem that serves as a reference for location and or scale. Sometimes I'll use a wider area shot with an arrow to the issue, then a tighter shot of the specific ....