2003 S600 .... Engine out
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Senior Member
Joined: Mar 2016
Posts: 287
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2014 E63s
I literally Am going through the same thing. I Reached out to them and they suggest 14 10 spring rate for the S65. I also asked the question what was the difference mechanically between the different valve types, and got no response. I would go with the standard mounts as they have rubber top bushing. The pillow ball as I have read, seem to be more applied to keeping the suspension geometry perfect, with comfort not really in the picture. The yellow speed springs don't offer rubber suspension mounts and its just literally metal on the strut tower. Now that my springs have settled on the S55 the ride on my Yellow speed kits is really good. I can only imagine how good it would be if it had rubber bushings! The sway bars really allow you to loose up the damping on the struts.
Ok back to struts
Do you plan on putting sways on?
If not I would go with a higher spring rate as to compensate for the no sway. I believe with the extra v12 weight the helper springs up front. I assume the rally valving is more mechanically sound than the others. I am not sure though. I would choose rally valving. I would go with the standard mount. The way we set the ride height was by setting the coiler to the length of the ABC strut before installing it. I believe it is 27in to the wheel arch on all 4 corners now.
Ok back to struts
Do you plan on putting sways on?
If not I would go with a higher spring rate as to compensate for the no sway. I believe with the extra v12 weight the helper springs up front. I assume the rally valving is more mechanically sound than the others. I am not sure though. I would choose rally valving. I would go with the standard mount. The way we set the ride height was by setting the coiler to the length of the ABC strut before installing it. I believe it is 27in to the wheel arch on all 4 corners now.
Senior Member
Joined: Aug 2014
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S55 AMG
I do plan putting on only front sway bars. However, I'm most likely going to do the conversion in two stages: first stage install all four coilover struts and replace tandem pump with normal pump, second stage replace lower control arms and add front sway bar.
I assume the 14 10 spring rate also would apply to the s600 since the s65 is a very similar car to it. I would still ask them though for what the best setup would be.
I assume the 14 10 spring rate also would apply to the s600 since the s65 is a very similar car to it. I would still ask them though for what the best setup would be.
Super Member
Joined: Jun 2016
Posts: 589
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From: Snowville, ID
W212 E350; W166 GLC300; W164 ML550; W164 ML63; W221 S65; W220 S430; Escalade ESV
Nick,
I figured out why I had no issues with loosing the double output banjo bolt. It's because of the 19" stubby ratchet wrench. You have no room with the standard wrench.
The new tandem pump had been installed and I have to create a T for the 2 output lines to go back to the reservoir. It's a dirty setup but it works for now...
I figured out why I had no issues with loosing the double output banjo bolt. It's because of the 19" stubby ratchet wrench. You have no room with the standard wrench.
The new tandem pump had been installed and I have to create a T for the 2 output lines to go back to the reservoir. It's a dirty setup but it works for now...
Super Member
Joined: Jun 2016
Posts: 589
Likes: 60
From: Snowville, ID
W212 E350; W166 GLC300; W164 ML550; W164 ML63; W221 S65; W220 S430; Escalade ESV
I have a leak on the power steering lines. The 6mm Allen wrench can't reach it. 
Looks like it needs to be tightened or couple new o-rings. I supposed the subframe need to be dropped? Any info on the o-ring sizes?
Looks like it needs to be tightened or couple new o-rings. I supposed the subframe need to be dropped? Any info on the o-ring sizes?
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Joined: May 2015
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From: Miami, FL
2003 CL 600
Those lines are integral in the rack, they don't usually leak... Are you sure it's not coming from the lines on top of the rack?
You could probably loosen the rack and move it a little, but yeah if it needs to come out, gotta lower the subframe I believe.
You could probably loosen the rack and move it a little, but yeah if it needs to come out, gotta lower the subframe I believe.
Super Member
Joined: Jun 2016
Posts: 589
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From: Snowville, ID
W212 E350; W166 GLC300; W164 ML550; W164 ML63; W221 S65; W220 S430; Escalade ESV
I'm sure the leaks are from those o-rings. Anything above the o-rings are dry. Sucks that I have to drop the subframe to see if they need to be tightened.
Super Member
Joined: Jun 2016
Posts: 589
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From: Snowville, ID
W212 E350; W166 GLC300; W164 ML550; W164 ML63; W221 S65; W220 S430; Escalade ESV
Does anyone know if this set allows power steering lines removal without having to drop the subframe?
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Joined: Nov 2010
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From: Welwyn, Herts, UK
2006 S600
I don't think you have to drop the subframe - it's just difficult without, especially if the engine mounts have sagged.
The problem is you have to get an 18mm wrench between the subframe and sump in order to hold the rack mounting nuts.
I would unbolt the engine mounts and lift the engine up half an inch.
Nick
The problem is you have to get an 18mm wrench between the subframe and sump in order to hold the rack mounting nuts.
I would unbolt the engine mounts and lift the engine up half an inch.
Nick
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MBWorld Fanatic!
Joined: May 2015
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From: Miami, FL
2003 CL 600
I don't think you have to drop the subframe - it's just difficult without, especially if the engine mounts have sagged.
The problem is you have to get an 18mm wrench between the subframe and sump in order to hold the rack mounting nuts.
I would unbolt the engine mounts and lift the engine up half an inch.
Nick
The problem is you have to get an 18mm wrench between the subframe and sump in order to hold the rack mounting nuts.
I would unbolt the engine mounts and lift the engine up half an inch.
Nick
Far easier to lift the engine, absolutely. We do it all the time for a variety of reasons, even simple a/c compressor replacements require moving of the engine from time to time.
Super Member
Joined: Jun 2016
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From: Snowville, ID
W212 E350; W166 GLC300; W164 ML550; W164 ML63; W221 S65; W220 S430; Escalade ESV
I looked up EPC and here's what I see
#70 can be dropped easily but it won't help much. I took a chance and ordered #40 & #45 plus the stubby L wrench set. If the leaks remain then I will look at #210.
#70 can be dropped easily but it won't help much. I took a chance and ordered #40 & #45 plus the stubby L wrench set. If the leaks remain then I will look at #210.
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Joined: Jun 2016
Posts: 589
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From: Snowville, ID
W212 E350; W166 GLC300; W164 ML550; W164 ML63; W221 S65; W220 S430; Escalade ESV
Once #70 dropped, the whole steering arms can be pushed forward and exposed #40. I didn't want to go this route as I don't want to have to deal with wheel alignments.
I got the stubby L 6 and it fits perfectly. One of the #40 can't be removed completely but I was able to replace the seal rings for both sides.
The last MB master tech installed the wrong size seal rings and they were shredded (purple rings). The main leak was from the deformed rings (green rings on the right) Perhaps from excessive heat?
I got the stubby L 6 and it fits perfectly. One of the #40 can't be removed completely but I was able to replace the seal rings for both sides.
The last MB master tech installed the wrong size seal rings and they were shredded (purple rings). The main leak was from the deformed rings (green rings on the right) Perhaps from excessive heat?
Last edited by DrDoe; May 11, 2017 at 09:47 PM.
Junior Member
Joined: Feb 2017
Posts: 73
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2004 S600
Well, the power steering side of my tandem pump is going. Got 6000 miles out of it. Making lots of noise and hard to turn the wheel. Has anyone successfully converted a V12 tandem pump to a PS only pump from a V8? I'd like to do it this way, rather than buying another tandem, but the whole pulley thing seems to be an obstacle. Yellowspeed equipped 04 S600.
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Joined: Jun 2016
Posts: 589
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From: Snowville, ID
W212 E350; W166 GLC300; W164 ML550; W164 ML63; W221 S65; W220 S430; Escalade ESV
Originally Posted by DrDoe
Once #70 dropped, the whole steering arms can be pushed forward and exposed #40. I didn't want to go this route as I don't want to have to deal with wheel alignments.
I got the stubby L 6 and it fits perfectly. One of the #40 can't be removed completely but I was able to replace the seal rings for both sides.Attachment 354514Attachment 354512
The last MB master tech installed the wrong size seal rings and they were shredded (purple rings). The main leak was from the deformed rings (green rings on the right) Perhaps from excessive heat?Attachment 354513
I got the stubby L 6 and it fits perfectly. One of the #40 can't be removed completely but I was able to replace the seal rings for both sides.Attachment 354514Attachment 354512
The last MB master tech installed the wrong size seal rings and they were shredded (purple rings). The main leak was from the deformed rings (green rings on the right) Perhaps from excessive heat?Attachment 354513
Junior Member
Joined: Feb 2017
Posts: 73
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2004 S600
Only a couple things are likely that I would check for. Scratches/gouges on the sealing surfaces, or a piece of dirt/contamination causing a leak. Also, if there is a groove in the banjo that the oring sits in, it will leak if the oring gets pinched outside the groove through not being seated correctly. Last, use dial calipers to measure and compare the cross section (thickness of the rubber) of the old and new orings. It is possible they sold you the wrong size oring. That's happened to me before.
Super Member
Joined: Jun 2016
Posts: 589
Likes: 60
From: Snowville, ID
W212 E350; W166 GLC300; W164 ML550; W164 ML63; W221 S65; W220 S430; Escalade ESV
Thanks for the inputs. The parts were correctly ordered. I guess I have no choices but to get new seal rings again to see if new rings made a difference. 
My power steering reservoir went from full to completely empty in 3 weeks otherwise I would just live with the leaks.
My power steering reservoir went from full to completely empty in 3 weeks otherwise I would just live with the leaks.
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Joined: Apr 2026
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2005 S55
I am going to use the Arnott conversion kit for my suspension, comes with Biltstein tube on the coil overs. the question I have is what sway bars am i using.
I was thinking the S430 sway bars from '05 would fit but I want to make sure. Anyone have thoughts?
I was thinking the S430 sway bars from '05 would fit but I want to make sure. Anyone have thoughts?
