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Old 10-10-2001, 10:18 PM
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Join Date: Apr 1999
Posts: 2,638
500E vs. SportLine Struts/dampers

Just read the the factory MB 1992 Introduction to Service on the 400E and 500E and would like to share the following regarding suspension:

400E & 500E:
Tightening torque of the pinch-bolt & self-locking nut for the damper strut-to-steering knuckle assembly was increased to 200 Nm. The two lower hex bolts are unchanged at 110 Nm.

Both receive different buffers/bumpstops on the stuts: 500E: 70mm/bone color; 400E: 83mm/red color

Damper strut is equipped with an extension limiting spring giving additional vehicle support during cornerning, hence the smaller diameter swaybar.

500E self-levelling struts also has an extension limiting springs built-in.

500E struts are also shorter in length than the SportLine struts. SportLine is definitely stiffer.

Here's some pictures of the 500E strut/damper (short) and the 300E SportLine strut/damper (longer). Both are made by SACHS.

I don't know if the Bilstein Sport front dampers/struts have the built-in extension limiting spring, but they do have the shorter strut length like the 500E's.

:-) neil

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Old 10-10-2001, 11:05 PM
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JCE JCE is offline
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Join Date: May 1999
Location: So Kalifornia
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So if I read this correctly, 500E stuts on a 300E sportline would feel a little softer on bumps, but would stiffen the cornering - maybe too stiff given the Sportline front bar diameter? Does the same length and stiffness apply to the rear shocks as well?

Also, it looks like there is a score mark on the 500E strut right at the place where the shoulder/threads of the Sportline begin. Do they possibly share the same shaft, which is machined at that mark if it is to go into a Sportline strut? (Or maybe it is just a mark left from compression of the strut. The sportline has a mark as well, much closer to the strut body.) Thanks for the pics and info.


2003 Firemist Red/grey leather SL 500
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Last edited by JCE; 10-10-2001 at 11:11 PM.
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