Go Back  MBWorld.org Forums > Mercedes-Benz Sedans > E-Class (W212)
Determine which airbag is leaking >

Determine which airbag is leaking

Notices
E-Class (W212) 2010 - 2016: E 350, E 550

Determine which airbag is leaking

 
Old 02-14-2019, 04:41 PM
  #1  
Member
Thread Starter
 
Join Date: Jan 2019
Posts: 79
Received 8 Likes on 6 Posts
2011 E550, 1999 E320
Determine which airbag is leaking

Just had an idea. I suspect that one of my airbags has a very slow leak but I canít tell which one it is. Iím thinking of disconnecting the auxiliary battery and letting the car sit parKed a couple days until I can see which side lowers. Anyone else tryi it this way?
Paulcomi is offline  
Old 02-14-2019, 09:26 PM
  #2  
Senior Member
 
Join Date: Nov 2018
Location: Dallas Texas USA
Posts: 307
Likes: 0
Received 24 Likes on 23 Posts
2019 C43 Sedan
Get a spray bottle with some soapy water and start spraying each bag, you should see bubble at the leak
Tirgoman is offline  
Old 02-15-2019, 02:34 PM
  #3  
MBWorld Fanatic!
 
belarus27's Avatar
 
Join Date: Jun 2013
Location: Sacramento , CA
Posts: 1,802
Received 154 Likes on 145 Posts
2010 e550 p2
If you live in a cold state just park it outside overnight , and in the morning you will see which one is leaking.
if not
like someone mentioned use a spray bottle maybe?
belarus27 is offline  
Old 02-15-2019, 08:42 PM
  #4  
MBWorld Fanatic!
 
DFWdude's Avatar
 
Join Date: Apr 2006
Location: Dallas-Ft.Worth,TX
Posts: 2,119
Received 138 Likes on 109 Posts
2016 E350 Sport... 2001 C320 Avant Garde...
What is in an airbag to cause a leak? I thought there was just the bag and inflator powder. Nothing under any pressure.
DFWdude is offline  
Old 02-15-2019, 09:52 PM
  #5  
Senior Member
 
cadetdrivr's Avatar
 
Join Date: Jan 2014
Location: USA - Minnesota
Posts: 351
Received 20 Likes on 19 Posts
'14 GL350 & E350W4
Originally Posted by DFWdude View Post
What is in an airbag to cause a leak? I thought there was just the bag and inflator powder. Nothing under any pressure.
Airmatic ***suspension*** airbags 😉
cadetdrivr is offline  
Old 02-16-2019, 09:47 AM
  #6  
MBWorld Fanatic!
 
KEY08's Avatar
 
Join Date: Oct 2005
Location: Chicagoland
Posts: 3,454
Received 392 Likes on 362 Posts
2014 E550 4Matic Designo Diamond White and loaded up
Donít assume itís an air spring leak. Iíve had more than one Airmatic equipped MB. There are many points of potential failure. Your idea is not the right approach, sorry.
KEY08 is offline  
Old 02-16-2019, 10:04 AM
  #7  
MBWorld Fanatic!
 
DFWdude's Avatar
 
Join Date: Apr 2006
Location: Dallas-Ft.Worth,TX
Posts: 2,119
Received 138 Likes on 109 Posts
2016 E350 Sport... 2001 C320 Avant Garde...
Originally Posted by cadetdrivr View Post
Airmatic ***suspension*** airbags ��
Ah, that optional "airbag" that no one ever sees, until it leaks.

I thought this was about the airbag (that everyone has) in the steering wheel, LOL.

Unspecific Thread labelling #87,673,

OK, carry on....

Last edited by DFWdude; 02-16-2019 at 10:07 AM.
DFWdude is offline  
Old 02-16-2019, 11:19 AM
  #8  
MBWorld Fanatic!
 
Join Date: Jan 2009
Location: V E G A S
Posts: 5,491
Received 496 Likes on 465 Posts
E250 BTC
Get a scanner who can read the system.
I don't have airmatic, but my iCarsoft has it in the menu, so I assume it would make full troubleshooting.
The system is very complex and car computer is not giving any feedback to the driver till it comes to complete failure. so scanning it periodically can save you lot of troubles on long run.
The deal is that small leak will not trigger any warning, but will wear out your compressor and flood the system with moisture, so by the time the small leak becomes big enough for warning, you have huge mess.
kajtek1 is offline  
Old 02-16-2019, 08:10 PM
  #9  
MBWorld Fanatic!
 
Arrie's Avatar
 
Join Date: Oct 2010
Posts: 2,872
Received 85 Likes on 75 Posts
2010 E550
Originally Posted by kajtek1 View Post
Get a scanner who can read the system.
I don't have airmatic, but my iCarsoft has it in the menu, so I assume it would make full troubleshooting.
The system is very complex and car computer is not giving any feedback to the driver till it comes to complete failure. so scanning it periodically can save you lot of troubles on long run.
The deal is that small leak will not trigger any warning, but will wear out your compressor and flood the system with moisture, so by the time the small leak becomes big enough for warning, you have huge mess.
What warnings do you talk about? I have airmatic and it goes all the way down over night if I leave it at sports suspension mode but if I leave it in comfort it stays up. I leave my car very often for 5 days parked at airport and it has not leaked once yet when I leave it in comfort but in sport mode it will be down when I return.

Anyway, I don't get any warnings when car is down, just a message saying "Car is raising" when it pumps it up from the bottom.

Arrie is offline  
Old 02-17-2019, 03:28 AM
  #10  
Member
Thread Starter
 
Join Date: Jan 2019
Posts: 79
Received 8 Likes on 6 Posts
2011 E550, 1999 E320
That’s what mine does too if I park it in sport it will drop overnight.
Paulcomi is offline  
Old 02-17-2019, 03:29 AM
  #11  
Member
Thread Starter
 
Join Date: Jan 2019
Posts: 79
Received 8 Likes on 6 Posts
2011 E550, 1999 E320
I’ve been thinking about getting a scanner but I know nothing about them. It sounds like you do with scanner is a no regrets for service scanner that will give me all the information for my car and also my older 99 E320?
Paulcomi is offline  
 

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

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Determine which airbag is leaking


Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: