E-Class (W211) 2003-2009

Airmatic compressor

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Dec 22, 2019 | 04:11 PM
  #1  
Matteo Sukic's Avatar
Thread Starter
Member
5 Year Member
 
Joined: Nov 2019
Posts: 79
Likes: 7
w211 04 e220
Exclamation Airmatic compressor

Is it normal to hear airmatic compressor when parked a bit up-hill when unlocking car for 2-3 seconds,also I can hear it when driving on uneven road then when coming to a stop I can hear it running for a few seconds?I do not have any leaks in my struts.
Reply
Old Dec 22, 2019 | 08:33 PM
  #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
The system should level the car upon activation (remote button, or door opening) but it should use air from the tank for it.
When you have no air after short stop, the compressor will start to build the pressure lost due the leak.
But that is indication you have a leak and you are killing the compressor by making it working overtime.
Not saying that leak pumps lot of condensation inside the system.
Reply
Old Dec 23, 2019 | 04:29 AM
  #3  
Matteo Sukic's Avatar
Thread Starter
Member
5 Year Member
 
Joined: Nov 2019
Posts: 79
Likes: 7
w211 04 e220
So where should I start,since I had a leak in the rear struts, and my pump was running less than a month almost every day, to pump the rear struts?Could it be my pump,just dying?
Reply
Old Dec 23, 2019 | 04:30 AM
  #4  
Matteo Sukic's Avatar
Thread Starter
Member
5 Year Member
 
Joined: Nov 2019
Posts: 79
Likes: 7
w211 04 e220
Originally Posted by kajtek1
The system should level the car upon activation (remote button, or door opening) but it should use air from the tank for it.
When you have no air after short stop, the compressor will start to build the pressure lost due the leak.
But that is indication you have a leak and you are killing the compressor by making it working overtime.
Not saying that leak pumps lot of condensation inside the system.

So where should I start,since I had a leak in the rear struts, and my pump was running less than a month almost every day, to pump the rear struts?Could it be my pump,just dying?
Reply
Old Dec 23, 2019 | 04:03 PM
  #5  
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 you have scanner who will monitor the system pressure - use it to determinate the amount of lost air to start. That will help in determination what you are looking for.
I had air system problem in years when $150 scanners for MB did not exist, so I simply put a tee on the main line and hook up pressure gauge.
Then when I was ready to dive under the car with spray bottle, I removed the gauge and hook up shop compressor to it, to have constant pressure.
In my case it turned that I had pinhole in 4mm tubing- right under differential, that would hold 80 psi, but would open with higher pressure.
That's how tricky the system can be.
Reply
Old Dec 23, 2019 | 04:28 PM
  #6  
Matteo Sukic's Avatar
Thread Starter
Member
5 Year Member
 
Joined: Nov 2019
Posts: 79
Likes: 7
w211 04 e220
Unhappy

Originally Posted by kajtek1
If you have scanner who will monitor the system pressure - use it to determinate the amount of lost air to start. That will help in determination what you are looking for.
I had air system problem in years when $150 scanners for MB did not exist, so I simply put a tee on the main line and hook up pressure gauge.
Then when I was ready to dive under the car with spray bottle, I removed the gauge and hook up shop compressor to it, to have constant pressure.
In my case it turned that I had pinhole in 4mm tubing- right under differential, that would hold 80 psi, but would open with higher pressure.
That's how tricky the system can be.
Just when I fixed one problem another one came up..hopefully this one will be less expensive
Reply
Old Dec 26, 2019 | 10:10 PM
  #7  
bradgrubbs's Avatar
Newbie
 
Joined: Jun 2019
Posts: 5
Likes: 0
From: Dallas, Texas
2015 S550, 2005 SRT6 Crossfire, 2001 Prowler - BlackTie
Need Airmatic components

Where is the best place to purchase Airmatic components. Struts, rear airbags and compressor? I can do the work myself. Just need the parts.
Also appreciate any tips and suggestions.

Last edited by bradgrubbs; Dec 26, 2019 at 10:13 PM.
Reply
Old Dec 28, 2019 | 10:26 AM
  #8  
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
ebay has compressor rebuild kits for about $20. It takes some work to pull the compressor and rebuild it, while baking the drier granules, but nothing that inclined DIY can't do .
For bags lot of members buy Arnots, where airbags delete rear reservoirs. That lowers the comfort, but life is full of compromises.
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
Old Jan 12, 2020 | 02:53 PM
  #9  
Matteo Sukic's Avatar
Thread Starter
Member
5 Year Member
 
Joined: Nov 2019
Posts: 79
Likes: 7
w211 04 e220
Quick update on this,at the end everything is ok with airmatic,the SBC pump is pressuring the system,and I thought it was the airmatic compressor all the time..Hahaha
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 02:23 AM.

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