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'95 S600
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419 Posts
Discussion Starter #1
After reading a few threads on replacement of this joint, i decided to replace them as preventative maintenance along with my upper SLS mounts which were worn.

I didn't want to use the Bilstein bushing as it was said it slightly too small and the incorrect length.
I saw a couple of people mention the Prothane 19-907 was another seemly better option, so i ordered a set without checking the specs. Once the strut was removed it was clear these were no where near the correct dimensions - length too short, center hole and diameter too big.

I pressed out the joints using 36mm socket a 100mm+ bolt & nut, came out fairly easy in my case.

I was wondering how to proceed when i remembered someone mentioning their mechanic used BMW bushings but wouldn't share the part no :tosser1:

I happen to have a set of BMW Lemforder control arm bushings (31121124622) that had been lying around for years. Turns out they have the exact same length(52mm) and center hole(12mm) measurement as the original joints, but the diameter was way too large - 45mm instead of the 34-35mm needed to fit.I decided it was less effort to make them fit rather than finding something else.

I cut slots in the outer metal ring and used a gas torch to heat the metal slightly to help separate it from the rubber. I then used a grinder to reduce the rubber diameter to 34-35mm and sandpaper to smooth it out.
Using a lathe would be much easier,faster and less messy but i cbf'd going into town on this occasion.

Pressed it back in and done, nice and tight, what should of been used in the first place.

Hope this helps someone
Cheers
J
 

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93 SL500, 95 SL320, 96 S320, 98 S500, 2002 E320 4Matic Wagon & A little 91 5.0 FORD Mustang
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Thank You for taking the time to share it!!!

I like that....

Saved in links...

Martin
 

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1999 S500; W140.051
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692 Posts
NZ Jay,

For the upper mounts did you order the MB mounts at about $100 ea or did you do something different?
 

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'95 S600
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419 Posts
Discussion Starter #8
Yeah i used those crazy priced MB ones but it was worth it just to put an end the thud, i just couldn't bring myself to use the car anymore without fixing them.
 

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1999 S500; W140.051
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692 Posts
I hear you and totally understand. The irony that gripes me is that the front 'standard' shocks use that same 'pod' approach and you buy the shock with the mount for about $90 ea. What's up with that?! I replaced the two rear SLS shocks with new because I got impatient after removing them and didn't wait to take them to work to use a torch on the upper mount and thought 'I'll just give it a try to see if it will loosen'. Well, I broke off one of the cast studs at the top. Painful lesson.

I applaud your ingenuity on that lower mount. Your fix is the best I've seen. When those mounts are good and the SLS system is working, it is the most incredibly comfortable suspension in that luxury monster of a car.

Don't change the springs to different lowering type or any of that. If you do, the SLS system will not work correctly and the damping will not be right. I've been thru that with buying a car that had H&R springs put in. Before I got everything right I think I had R&R'd the rear springs four times.
 

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'95 S600
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419 Posts
Discussion Starter #10
Yeah i saw your post on the subject, tis a good example over German over-engineering. It was alot of luck really considering how many different bushings are out there, im sure there's a perfect one which needs no modification, but till someone finds it and lets others know i think this is the best for now.

My top mounts came of easy with a little heat from LPG torch which was a relief. I have AMG suspension which includes springs and AMG self leveling shocks(which im certain are very rare) so i want to keep it as original.

Im very impressed by the cars handling on current setup now that ive done swaybars links\bushings, Bilstein front shocks, new accumulators and decent rubber. You feel the weight turning it in to a corner but its very stable and not alot of body roll for such a heavy car. The inflatable side bolsters are one of my favorite things on this car and actually useful. People ive taken for a ride are always impressed by handling and power of such a beast.
Id love to drive a std w140 on 16's to compare it handling wise as ive only ever experienced this W140, they are scarce here.
 

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'95 S600
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419 Posts
Discussion Starter #11
Forgot to mention im grateful i found yours and Jayware? posts on the subject, otherwise i may not of even bothered replacing them not knowing what i was dealing with.
 

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'95 S600
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419 Posts
Discussion Starter #13
Nope no ADS just AMG version on the std SLS system. 18" Mono Blocks, what im guessing are stiffer springs\shocks and probably a little lower ride height.
 

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1999 S500; W140.051
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Regarding the tires & rims, I'm running the OE 16" rims with 235/60-16 Mich Primacy tires that are H-rated. The only thing I've noted about the taller tires is that inflation pressure really needs to run about 36psi or peel of tire on rim makes for soft cornering. Gas door cites about 28psi, but that seems way too low as the cornering won't feel as positive.

Fortunately, the damping in the suspension has comfort factor that far exceeds almost any other vehicle even with the 36psi inflation.
 

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'95 S600
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419 Posts
Discussion Starter #15
Yeah i run ~36 psi all round on most cars ive owned and have always got good even wear. Fuel door on my NZ new S600 says 34 psi so must be a market thing.
 

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93 SL500, 95 SL320, 96 S320, 98 S500, 2002 E320 4Matic Wagon & A little 91 5.0 FORD Mustang
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Excellent Joe,

I need to do it to the Beater S500, and I bet they are bad bad on my 200k Mile car..

Martin
 

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MY96 S500 & MY96 S600
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I had my SLS height set quite high so it pushes out on the bushes, it only made noise over the biggest ruts/bumps. Now that I've done this I'll lower it a touch.

BTW I did not swap my upper shock mounts, those metal spheres filled with solid rubber, it's all in the loose flogged out balljoint.
 

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'95 S600
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419 Posts
Discussion Starter #20
Sounds like the opposite of my situation. My lowers were ok (boots were split but not dry) but it was the upper mounts that were had it (you could move them in any direction with you hand).

While the thud from the boot is gone my rear end still feels quite harsh when going over sharp bumps, the front 2 rear subframe bushings appear to need replacing now. Driving with bad accumulators and mounts to some degree on the SLS setup probably increases the wear rate on subframe bushings, having 18" rims and AMG sport struts doesn't help the situation either.
 
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