E-Class (W211) 2003-2009

Sagging rear of wagon

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Feb 12, 2016 | 10:45 AM
  #1  
dwalz914's Avatar
Thread Starter
Newbie
 
Joined: Feb 2016
Posts: 7
Likes: 0
07e350
Sagging rear of wagon

Woke this morning to a sagging rear of wagon in single digit temps. 2nd time in 1 month. fixes itself after a few cycles of ignition. air bags or compressor?
Reply
Old Feb 12, 2016 | 11:01 AM
  #2  
kajtek1's Avatar
MBWorld Fanatic!
15 Year Member
Photogenic
Liked
Loved
 
Joined: Jan 2009
Posts: 9,224
Likes: 1,797
From: V E G A S
1922 Ford Model T / no OBD
Is it holding at warmer temperatures thru the day?
You said it yourself that compressor is pumping it up, although required few cycles would indicate deteriorating performance.
In your shoes I would start with compressor service/overhaul. I made pictorial about it.
My first guess would be that moisture in the system freeze something.
Reply
Old Feb 12, 2016 | 11:11 AM
  #3  
dwalz914's Avatar
Thread Starter
Newbie
 
Joined: Feb 2016
Posts: 7
Likes: 0
07e350
Originally Posted by kajtek1
Is it holding at warmer temperatures thru the day?
You said it yourself that compressor is pumping it up, although required few cycles would indicate deteriorating performance.
In your shoes I would start with compressor service/overhaul. I made pictorial about it.
My first guess would be that moisture in the system freeze something.
It holds pressure for weeks at a time
Reply
Old Feb 12, 2016 | 01:16 PM
  #4  
kajtek1's Avatar
MBWorld Fanatic!
15 Year Member
Photogenic
Liked
Loved
 
Joined: Jan 2009
Posts: 9,224
Likes: 1,797
From: V E G A S
1922 Ford Model T / no OBD
If it holds for weeks in warm weather, but drops in freezing temperatures, that should give you straight pointer.
When was the last time you serviced the compressor?
I bought my wagon with over 140k and had intermittent suspension warnings, till I finally bought rebuild kit.
Doing the service at the end of very long dry season, I found the drier soak wet, so evidently there is design flaw in the system.
If you keep filling delicate electrovalves with moisture and park the car in freezing temperatures, that is asking for troubles.
Reply
Old Nov 8, 2016 | 02:51 PM
  #5  
dwalz914's Avatar
Thread Starter
Newbie
 
Joined: Feb 2016
Posts: 7
Likes: 0
07e350
Problem found,
Turns out it was the "T" fitting that supplies air to the rear air springs is leaking.
Thanks for all the input.
Dan
Reply
Old Nov 8, 2016 | 03:09 PM
  #6  
kajtek1's Avatar
MBWorld Fanatic!
15 Year Member
Photogenic
Liked
Loved
 
Joined: Jan 2009
Posts: 9,224
Likes: 1,797
From: V E G A S
1922 Ford Model T / no OBD
Good you found leak source, but I am afraid you might have more issues.
Leak on supply line will not drop the suspension, unless valves on bags leak in the row as well.
Reply
Old Nov 9, 2016 | 07:59 AM
  #7  
dwalz914's Avatar
Thread Starter
Newbie
 
Joined: Feb 2016
Posts: 7
Likes: 0
07e350
Kajtec1,
Took your advice and replaced the right rear spring that was bottoming out in cold weather. Upon start up the right is about an inch shorter than the left side.
Today I will replace the air distributor and see what happens.
Reply
Old Nov 13, 2016 | 08:44 PM
  #8  
_Ryan's Avatar
Member
 
Joined: Dec 2014
Posts: 111
Likes: 14
From: NH/Boston
2004 S600 Biturbo
If the bags are sagging overnight, you have a leak in the bags. There is an isolation valve that locks them off from the system when the car is off. If the car is sagging overnight, it is 100% a bag failure.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-1

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-2

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-3

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-4

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-5

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-6

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-7

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
story-8

10 Most Reliable Mercedes-Benz Models You Can Buy Used

 Verdad Gallardo
story-9

Mercedes Teases Updated EQS With Steer-By-Wire and a Yoke

 Verdad Gallardo

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 10:31 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE
story-9
Mercedes Teases Updated EQS With Steer-By-Wire and a Yoke

Slideshow: The 2027 update adds a fully digital steering system, revised styling, and potential charging upgrades as the company looks to revive interest in the luxury EV.

By Verdad Gallardo | 2026-04-04 10:24:38


VIEW MORE