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Topic: Shocks and Springs, is there a consensus? Reply to Thread
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  Topic Review (Newest First)
06-16-2018 04:12 AM
cwmoser I'm suspecting that the rear shocks, installed by PO, on my 1986 560SL are HD - it rides a little harsh. I've looked at the shocks for an identification but can't find anything except the Bilstein logo. Other than the feeling in ones butt, how would you ID these without removing them?
06-15-2018 04:12 PM
RLT61
Quote:
Originally Posted by PanzerPuff View Post
thanks for that. I will put the car on the lift and check the idler. I rebuilt it on my 450 but not this one. Anyone have experience with Febi? It seems they are one of the few alternatives to Uro brand that everyone avoids.
Here is a link, even has a Mercedes branded one.
https://www.fcpeuro.com/Mercedes~Benz-parts/560SL/Idler-Arms/?year=1986&m=20&e=624
06-15-2018 02:22 PM
PanzerPuff
Quote:
Originally Posted by RLT61 View Post
I had a vibration that would show itself sometimes at around 70 mph. I thought it was a tire balance issue as well but read somewhere that it also could be the idler arm bushings. Installed an idler arm rebuild kit and that took care of it. I believe the part number you’ve listed below is for what is considered “comfort” shock absorbers.
thanks for that. I will put the car on the lift and check the idler. I rebuilt it on my 450 but not this one. Anyone have experience with Febi? It seems they are one of the few alternatives to Uro brand that everyone avoids.
06-15-2018 05:07 AM
Aussiemerc I have now owned 4 Mercedes (E430,W126,W220,R107)and I have noticed a slight vibration at 110 KMH (around 65-70mph) in each of them. Maybe the tyres? who knows? I just drive over or under that speed on the highway.
06-15-2018 04:18 AM
RLT61 I had a vibration that would show itself sometimes at around 70 mph. I thought it was a tire balance issue as well but read somewhere that it also could be the idler arm bushings. Installed an idler arm rebuild kit and that took care of it.
I believe the part number you’ve listed below is for what is considered “comfort” shock absorbers.
06-14-2018 07:23 PM
PanzerPuff I may need shock therapy. My 560SL sometimes vibrates on the interstate as if the wheels were not balanced. However I have two sets of wheels that are roadforce computer balanced and there are times at 70mph that either set runs smooth. When on a bumpy road the car sometimes responds like a severe case of cowl shake. Bumpy does not mean potholes, just running over manhole covers can cause the shake. This does not happen consistently... sometimes there is no shake, I have not figured out any pattern. Do you think new shocks would eliminate this symptom? When I bounce the car at each corner the motion stops right away, as it should with working shocks.

Is this the correct part number for what we call Bilstein comforts? Bilstein B4 24-011846
06-08-2018 05:07 PM
roncallo
Quote:
Originally Posted by Franco380 View Post
Quick question: why comforts on the rear?
Its the OE setup. My wife does not like the HD's I put in the rear especially with the 18" wheels.
06-08-2018 04:59 PM
peter.k you can also get coilovers.. Dkubus Blackline 107 adjustable suspension system | dkubus Pty Ltd
06-07-2018 10:26 AM
304065 Ideally the shock valving should be matched to the spring rate. This accounts for different valving (HD, Comfort) front-to-rear.

Where it gets complicated is when the spring rates have changed, either through fatigue, coils removed, or aftermarket springs.

Ideally you would put the shocks on a shock dyno to measure them and then match to the revised suspension (including spring and bushing changes)

Of course that's an ideal. . . not sure I have heard of anyone in the R107 community who has done this.
06-06-2018 06:27 PM
Franco380 Quick question: why comforts on the rear?
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