R-Class (W251) Produced 2006-2013: R320CDI, R350, R420CDI, R500

Mercedes R350 rear suspension

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Oct 31, 2018 | 08:13 AM
  #1  
decker123's Avatar
Thread Starter
Newbie
 
Joined: Apr 2012
Posts: 4
Likes: 0
Mercedes W123 300TD
Mercedes R350 rear suspension

I have problem with air rear suspension. I want change to regular spring. Suncore sells kit for ML and GL (the same kit). I am not sure about this kit be working on R350.
Maybe somebody know more about this???
https://www.suncoreindustries.com/pr...-ml-class-w164
Reply
Old Nov 2, 2018 | 02:57 PM
  #2  
R3504Matic's Avatar
Junior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2018
Posts: 60
Likes: 8
From: Dallas, TX
2006 R3504Matic, S430, BMW750E66, E350 207, PORSHCE 911C4S, BMW128 E88, VWTREG, 86 560SL, 88560SEL++
I wouldnt do that.
The air suspension is so easy to change and it is not that expensives.
Look up Arnott Air Suspension videos on the Mercedes R class, they have how to video to do it.
Reply
Old Nov 3, 2018 | 09:14 AM
  #3  
efzauner's Avatar
Super Member
15 Year Member
Photogenic
Liked
Loved
 
Joined: Jul 2009
Posts: 938
Likes: 53
From: Montreal, Canada
2005 C240 2011 R350
Ditto on that. Changing rear airbag is pretty standard around 100K miles. BUT DO IT ASAP before your pump burns out from running too much to keep leaky airbags inflated!

Put in Arnott bags, very easy to do. and you get to keep your self leveling rear suspension.
https://www.rmeuropean.com/Products/...770-V5787.aspx
comes complete with new plastic upper clip instructions. and Arnott phone support is A1!
Reply
Old Nov 3, 2018 | 10:32 AM
  #4  
decker123's Avatar
Thread Starter
Newbie
 
Joined: Apr 2012
Posts: 4
Likes: 0
Mercedes W123 300TD
I have problem with left air bag. I replaced 2 times and still is low air. I think is something else.Left side is very high. No idea whats going on with this, probably is some air leak, is very hard to find.
Reply
Old Nov 3, 2018 | 10:36 AM
  #5  
efzauner's Avatar
Super Member
15 Year Member
Photogenic
Liked
Loved
 
Joined: Jul 2009
Posts: 938
Likes: 53
From: Montreal, Canada
2005 C240 2011 R350
So it may be the level sensors. You can replace them yourself. You can also try to switch left to right to see if the problem switches side. It is unusual that airbags fail that quickly. What sort of mileage? If you replace the sensors you still have to bring them to Mercedes to have the level calibrated.
Reply
Old Nov 4, 2018 | 09:13 AM
  #6  
tru1man's Avatar
Junior Member
 
Joined: Jan 2017
Posts: 61
Likes: 7
08 R350
Suncore

Originally Posted by decker123
I have problem with air rear suspension. I want change to regular spring. Suncore sells kit for ML and GL (the same kit). I am not sure about this kit be working on R350.
Maybe somebody know more about this???
https://www.suncoreindustries.com/pr...-ml-class-w164
I used the Suncore bags about 18mo ago. Very inexpensive and still working as expected. It makes sense to me that the ML GL and R would use the same product, being that the ride height is adjusted by the level sensors and any difference in air pressure would be managed by the compressor. Steel springs would need to be model specific.
Reply
Old Nov 4, 2018 | 09:53 AM
  #7  
R3504Matic's Avatar
Junior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2018
Posts: 60
Likes: 8
From: Dallas, TX
2006 R3504Matic, S430, BMW750E66, E350 207, PORSHCE 911C4S, BMW128 E88, VWTREG, 86 560SL, 88560SEL++
I had issues with similar, I replaced the air compressor and it stayed level. Your R should have auto leveling but it cannot if the air compressor is not working properly. It is an easy to solution to replace the air compressor. It is located in passenger front. I spent $280 for my compressor.

I also replaced the relay that goes with the compressor too.
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 04:11 AM.

story-0
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-1
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-2
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-3
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-4
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-5
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-6
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-7
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-8
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-9
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE