Rear ABC Line left the chat
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Joined: Apr 2021
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Offshore Research Vessel, 2016 Camry, Telluride, 2005 S55 AMG
Rear ABC Line left the chat
It has been quite some time since being on the forum, and have missed being here. Life gets in the way sometimes... Kids, sold house, moved, constantly at sea etc.
I have owned my 05 s55 for over 3 years (going on 4 now I believe) and have not even broke the 60k mile mark. The car is always in the garage and is very seldom driven, which in lies part of the problem. She is not driven enough! I came back from sea and decided to take the car out. Upon starting and raising the car, my rear ABC line from the valve block to the drivers rear strut blew (marked with yellow). Thankfully in the garage! Fluid everywhere, but shut the car off well before pump ran dry.
My question's are... What is the easiest way to remove the line as it goes above the rear subframe? I have read some have snaked the line out and others have dropped the rear subframe. Why did the engineers decide to take the line from the drivers side and run it over to the passenger side, just to go into the drivers rear strut? I am sure there is some reason, but why not have a line straight to the rear strut? What would be the harm in having a custom made line go directly to the strut......
Chris
I have owned my 05 s55 for over 3 years (going on 4 now I believe) and have not even broke the 60k mile mark. The car is always in the garage and is very seldom driven, which in lies part of the problem. She is not driven enough! I came back from sea and decided to take the car out. Upon starting and raising the car, my rear ABC line from the valve block to the drivers rear strut blew (marked with yellow). Thankfully in the garage! Fluid everywhere, but shut the car off well before pump ran dry.
My question's are... What is the easiest way to remove the line as it goes above the rear subframe? I have read some have snaked the line out and others have dropped the rear subframe. Why did the engineers decide to take the line from the drivers side and run it over to the passenger side, just to go into the drivers rear strut? I am sure there is some reason, but why not have a line straight to the rear strut? What would be the harm in having a custom made line go directly to the strut......
Chris
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Joined: Feb 2017
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From: Baltimore County, MD
'13 s212 63 p30. '06 LX470
It has been quite some time since being on the forum, and have missed being here. Life gets in the way sometimes... Kids, sold house, moved, constantly at sea etc.
I have owned my 05 s55 for over 3 years (going on 4 now I believe) and have not even broke the 60k mile mark. The car is always in the garage and is very seldom driven, which in lies part of the problem. She is not driven enough! I came back from sea and decided to take the car out. Upon starting and raising the car, my rear ABC line from the valve block to the drivers rear strut blew (marked with yellow). Thankfully in the garage! Fluid everywhere, but shut the car off well before pump ran dry.
My question's are... What is the easiest way to remove the line as it goes above the rear subframe? I have read some have snaked the line out and others have dropped the rear subframe. Why did the engineers decide to take the line from the drivers side and run it over to the passenger side, just to go into the drivers rear strut? I am sure there is some reason, but why not have a line straight to the rear strut? What would be the harm in having a custom made line go directly to the strut......
Chris
I have owned my 05 s55 for over 3 years (going on 4 now I believe) and have not even broke the 60k mile mark. The car is always in the garage and is very seldom driven, which in lies part of the problem. She is not driven enough! I came back from sea and decided to take the car out. Upon starting and raising the car, my rear ABC line from the valve block to the drivers rear strut blew (marked with yellow). Thankfully in the garage! Fluid everywhere, but shut the car off well before pump ran dry.
My question's are... What is the easiest way to remove the line as it goes above the rear subframe? I have read some have snaked the line out and others have dropped the rear subframe. Why did the engineers decide to take the line from the drivers side and run it over to the passenger side, just to go into the drivers rear strut? I am sure there is some reason, but why not have a line straight to the rear strut? What would be the harm in having a custom made line go directly to the strut......
Chris
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Joined: Apr 2021
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Offshore Research Vessel, 2016 Camry, Telluride, 2005 S55 AMG
I appreciate the response Baltistyle. I have a hydraulic shop close to me and will most likely have a custom line done as well as see if they can repair the original line. I will see what they can do.
Many Thanks,
Chris
Many Thanks,
Chris
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'06 MB S55 AMG; '04 Audi Allroad 4.2; '05 BMW M3 Conv.; '92 MB 500E
I'd probably run it the same way... I can't remember off hand how the rear lines interact with the return accumulator, which is why I was calling JohnLane.
maw
maw
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Offshore Research Vessel, 2016 Camry, Telluride, 2005 S55 AMG
I appreciate the input Maw. I will most likely go the standard route in replacement as I want to keep the system original. Just was not sure if having the lines ran different (more direct) would make life easier in the long run. No rush on my end as I'm heading back to sea for a short period.
Chris
Chris
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'06 MB S55 AMG; '04 Audi Allroad 4.2; '05 BMW M3 Conv.; '92 MB 500E
I understand Cap'n... if a new route bypassed some damper I would expect trouble... vibration or worse... but I haven't looked at a schematic.
God's speed at sea.
maw
God's speed at sea.
maw
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MBWorld Fanatic!
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From: Baltimore County, MD
'13 s212 63 p30. '06 LX470
Seems like most people do a repair if the fittings are OK. You can replace the O-rings for the fittings while you are in there.
Last edited by Baltistyle; Sep 17, 2024 at 02:04 PM.
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Thread Starter
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Joined: Apr 2021
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Offshore Research Vessel, 2016 Camry, Telluride, 2005 S55 AMG
That is also in my plan to do. I figured if I'm under the car I will go ahead and replace o-rings as well. I believe there are better o-ring options (kits) out there with better materials used. (Green comes to mind)..... thanks for the info good sir!
Chris
Chris
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Joined: Oct 2011
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From: Philadelphia
2002 CLK55 AMG: 2004 S55 AMG: 2009 C63
Sorry to hear Cap. I suppose i got pretty damn lucky with the line i blew last December, as it was a straight shot under some driver side body panel plastics from the front to the rear valve block.
Ironically, i know exactly what line you're referring too, as a junkie constantly surfing the net for stuff to watch regarding all things ABC & AMG, i found a video of a guy who had to replace that same line. He too was befuddled as to why they would run it from driver to pass. back to driver side.
I'll ink the video below as maybe it could be of some help, however i do think he went the custom Hydro-shop repair to make the reinstall a bit easier.
All the best
- Joe
Ironically, i know exactly what line you're referring too, as a junkie constantly surfing the net for stuff to watch regarding all things ABC & AMG, i found a video of a guy who had to replace that same line. He too was befuddled as to why they would run it from driver to pass. back to driver side.
I'll ink the video below as maybe it could be of some help, however i do think he went the custom Hydro-shop repair to make the reinstall a bit easier.
All the best
- Joe
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Joined: Mar 2019
Posts: 269
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From: Las Vegas, NV
2003 S55 AMG, 2005 C320 Coupe, 2020 Jeep Gladiator Mojave
Sorry to hear Cap. I suppose i got pretty damn lucky with the line i blew last December, as it was a straight shot under some driver side body panel plastics from the front to the rear valve block.
Ironically, i know exactly what line you're referring too, as a junkie constantly surfing the net for stuff to watch regarding all things ABC & AMG, i found a video of a guy who had to replace that same line. He too was befuddled as to why they would run it from driver to pass. back to driver side.
I'll ink the video below as maybe it could be of some help, however i do think he went the custom Hydro-shop repair to make the reinstall a bit easier.
All the best
- Joe
https://www.youtube.com/watch?v=4meBTAo1Ewk&t=400s
Ironically, i know exactly what line you're referring too, as a junkie constantly surfing the net for stuff to watch regarding all things ABC & AMG, i found a video of a guy who had to replace that same line. He too was befuddled as to why they would run it from driver to pass. back to driver side.
I'll ink the video below as maybe it could be of some help, however i do think he went the custom Hydro-shop repair to make the reinstall a bit easier.
All the best
- Joe
https://www.youtube.com/watch?v=4meBTAo1Ewk&t=400s
Proceeds to talk about how good the car sounds without exhaust, suggests straight pipes to his buddy....immediately does burnout upon pulling out of the parking lot! I swear that was a flashback of my uncles 40 years ago!
I commend that man's motivation to lay on the ground and Sawzall that line off. Looks like it initially worked, I wonder if it held up. One thing I'd be concerned about is routing and keeping it from chaffing the hose on anything.
Last edited by S_Holford; Sep 17, 2024 at 11:16 PM.
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From: Phoenix
222 S-65
OP have a hydraulic shop or any outfit that deals in heavy equipment make it up for you using the fittings in the current hose.
Why would MB make up a hose that ends up being such a PITA? Haven’t we got beyond asking questions there is no logical answer to?
Were I to take a stab as to why MB did that hose like that.... Sure seems it had to be due to ease of handling it on the assembly line.
If you are able to shorten the hose such that it is less a PITA to reinstall but the hose won’t ever end up interfering with suspension at full squat or droop... get involved with exhaust... ect... . by all means... go for it.
Q for OP.... age of nitrogen bombs around the car? Be sure they are fresh. Takes very little hydraulic hammering to blow up hoses or worse.
She will I’ll need a rodeo after installing that hose and bleeding it.
My 221 S65 and the 222 cars have never had an ABC failure aside from the small nitrogen bomb that dampens the pump.
Why would MB make up a hose that ends up being such a PITA? Haven’t we got beyond asking questions there is no logical answer to?
Were I to take a stab as to why MB did that hose like that.... Sure seems it had to be due to ease of handling it on the assembly line.
If you are able to shorten the hose such that it is less a PITA to reinstall but the hose won’t ever end up interfering with suspension at full squat or droop... get involved with exhaust... ect... . by all means... go for it.
Q for OP.... age of nitrogen bombs around the car? Be sure they are fresh. Takes very little hydraulic hammering to blow up hoses or worse.
She will I’ll need a rodeo after installing that hose and bleeding it.
My 221 S65 and the 222 cars have never had an ABC failure aside from the small nitrogen bomb that dampens the pump.
Last edited by JohnLane; Sep 17, 2024 at 11:36 PM.
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From: DFW
SL63
A lot of engineering, and some economics go into the brake system, like any other system. Like intake and exhaust headers, the distance each run of the manifold takes, or in this case brake fluid, needs to be precise to get the best and or even performance. To get all 4 brakes to apply simultaneously, and proportionally through ABS or some other anti lock system, the engineering specs need to be adhered to.
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From: Panama City, FL
2007 Jaguar XJ8L, 1999 Miata, 2003 Yamaha FJR1300
A lot of engineering, and some economics go into the brake system, like any other system. Like intake and exhaust headers, the distance each run of the manifold takes, or in this case brake fluid, needs to be precise to get the best and or even performance. To get all 4 brakes to apply simultaneously, and proportionally through ABS or some other anti lock system, the engineering specs need to be adhered to.
To the OP. Absolutely replace the accumulators if they've never been done. If those are not soaking up pressure spikes, which is what they're in there to do, then the only other place to soak up pressure spikes is your lines, and they just can't. There is no external indication that an accumulator is bad, you just have to replace them every so often. One big one at each end of the car, and the two little ones; in this diagram, 4, 14, 52a, and 53. Also, except for physical damage like being cut or crimped in an accident, there is no other cause for lines to blow. It's bad accumulators. Period.
Last edited by wfooshee; Sep 18, 2024 at 10:05 AM.
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'06 MB S55 AMG; '04 Audi Allroad 4.2; '05 BMW M3 Conv.; '92 MB 500E
All good advice. Just don't pay much attention to the picture. That's a CL, not an S. I only know because item 4 (Rear Axle Accumulator) is in the wrong spot.
I was looking for the line that goes across from Driver to Passenger, and back to Driver side, and I don't see one. I actually don't think there is one, I just don't remember from the last time I was under the car while the rear return accumulator was being replaced.
maw
I was looking for the line that goes across from Driver to Passenger, and back to Driver side, and I don't see one. I actually don't think there is one, I just don't remember from the last time I was under the car while the rear return accumulator was being replaced.
maw
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From: DFW
SL63
You are right. My mistake. My Apologies.
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Offshore Research Vessel, 2016 Camry, Telluride, 2005 S55 AMG
Thanks for the info Joe! I appreciate it and thanks for the You tube link. I had completely forgot Project Shop FL did the same repair on his!
Chris
Chris
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Offshore Research Vessel, 2016 Camry, Telluride, 2005 S55 AMG
Thanks for the Info JohnLane! I have a hydraulics shop close to me and have picked their brain on it. They said to bring the line in, which of course I was going to anyway...Just have not had the time due to work.
As to answer your questions about the Accumulators. I replaced them all, including the dampener and a filter fluid change at around 57k maybe 3 years ago. I'm only at 60k miles now. Those are fairly easy to change, so if I have to due to her sitting I will.
Thanks again!
Chris
As to answer your questions about the Accumulators. I replaced them all, including the dampener and a filter fluid change at around 57k maybe 3 years ago. I'm only at 60k miles now. Those are fairly easy to change, so if I have to due to her sitting I will.
Thanks again!
Chris
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Offshore Research Vessel, 2016 Camry, Telluride, 2005 S55 AMG
Thank you wfooshee!
The accumulators, dampener, filter and fluid has all been changed. 3 years ago for the accumulators and dampener, fluid was changed yearly and filter twice a year. The line had a small split in it length wise, maybe half inch long. I will be removing the line in a week or two. No time now and I do not trust dealers to do the work and put all the brackets back in their place. So, the old girl is on my schedule.
Thanks again,
Chris
The accumulators, dampener, filter and fluid has all been changed. 3 years ago for the accumulators and dampener, fluid was changed yearly and filter twice a year. The line had a small split in it length wise, maybe half inch long. I will be removing the line in a week or two. No time now and I do not trust dealers to do the work and put all the brackets back in their place. So, the old girl is on my schedule.
Thanks again,
Chris
