A8 / S8 (D3 Platform) Discussion Discussion forum for the D3 Audi A8 produced from 2003-2010 and Audi S8 produced from 2006-2010

Strut Type Compatability

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Old May 14, 2024 | 06:41 PM
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mcs
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Default Strut Type Compatability

Hi there,

I have a failing front strut with the o ring at the top of the damper leaking. I have ordered a rebuild kit, but I am also thinking longer term for replacement of entire struts.

My car has Sport Air suspension, and I was wondering, what would actually occur if I installed struts made for the normal air suspension cars as these are way more available?

I would think the sport suspension ECU would keep the lower ride height and it would simply be the case that the damper valving rates would be slightly different.
Would there be any errors etc? Has anyone tried this?

Thanks in advance.
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Old May 18, 2024 | 01:59 PM
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I think the sport suspension struts might also actually be physically shorter than the standard ones. Ie the lower ride height isn’t just down to the ride height settings in the ECU, it’s from shorter length struts.
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Old May 20, 2024 | 12:45 PM
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Originally Posted by dvs_dave
I think the sport suspension struts might also actually be physically shorter than the standard ones. Ie the lower ride height isn’t just down to the ride height settings in the ECU, it’s from shorter length struts.
+1. What I understood too. Also makes sense to preserve total range of motion both up AND down.

Might remember it from the Suspension related Self Study Program (SSP) for the D3 launch 20+ years ago now.
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