[FaRKle!]

Index:
0:00 Bilstein strut overview
0:25 Strut disassembly
1:13 Bump stop removal
1:42 Strut reassembly

We know that changing bump stops, to ether shorter ones or different hardnesses, is one way to tune your suspension and can have a large impact on ride quality. With Bilstein's "inverted" front struts this is more difficult since it requires removing the damper cartridge from the strut body. If you've ever wondered how to do that though, and what the bump stops look like check out the video above.

In this video I originally was using some H&R bump stops in my B6-based dampers, but wanted to go to a softer compound and a bit shorter to give my damper more travel before engaging the bump stop. Also, since I went up in spring rate since the last iteration, I didn't need quite as stiff of a bump stop. I ended up buying the bump stops that are included in the xDrive B14 struts (E4AP2Z118A00), and then cut them down to my desired length. Since they're made of foam, you need to use a serrated blade to cut them.

[Onizukachan]

Though I will probably never ever need to do this, myself thank you so much for sharing this with us. And if I ever did... now I know where to look for guidance!

[kilogram]

Ooh, I didn't realize they ran inverted struts on these. Very cool.

[xpro]

Hi,

These are the images of my B8s coupled with Eibach springs and you can see where I marked the strut to check for travel.

Unfortunately they do use the whole length of travel which isnt good I suppose for the longevity of the shocks.

So Im looking to replace the original soft B8 bump stops.

Do you know would and M3 or similar bump stop fit??

Thanks

These are the photos I took at the start before testing. After a few hundred of KMs the marks are gone almost to the very top!

[andino]

Originally Posted by xpro

Hi,

These are the images of my B8s coupled with Eibach springs and you can see where I marked the strut to check for travel.

Unfortunately they do use the whole length of travel which isnt good I suppose for the longevity of the shocks.

So Im looking to replace the original soft B8 bump stops.

Do you know would and M3 or similar bump stop fit??

Thanks

These are the photos I took at the start before testing. After a few hundred of KMs the marks are gone almost to the very top!

You need an internal bump stop for bilsteins. They have different PNs available online so you'll have to look around for something that fits your application.

That said, it looks like you still have the top 2cm of travel available on your struts so I don't think you're bottoming out the damper yet. Do you hear a clunking noise when hitting large bumps? That's what mine sounded like when hitting even modest bumps.

[xpro]

Originally Posted by andino

You need an internal bump stop for bilsteins. They have different PNs available online so you'll have to look around for something that fits your application.

That said, it looks like you still have the top 2cm of travel available on your struts so I don't think you're bottoming out the damper yet. Do you hear a clunking noise when hitting large bumps? That's what mine sounded like when hitting even modest bumps.

I dont hear clunks but the marks I had in the strut are now gone which is a sign off the full strut compression.

I will look into B14 bump stops or make custom ones.

[Juny]

Originally Posted by andino

You need an internal bump stop for bilsteins. They have different PNs available online so you'll have to look around for something that fits your application.

That said, it looks like you still have the top 2cm of travel available on your struts so I don't think you're bottoming out the damper yet. Do you hear a clunking noise when hitting large bumps? That's what mine sounded like when hitting even modest bumps.

What I need. Need to change the internal bump stop for others more shorter?? I’m hearing this noise when large bumps. Maybe need a bit more travel. Don’t know.