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Can use some help on confusing Airmatic issue diagnosis

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Can use some help on confusing Airmatic issue diagnosis

 
Old 12-28-2018, 10:11 PM
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Can use some help on confusing Airmatic issue diagnosis

The front left corner of my 2006 E55 sags when parked. It sags about 1" - 1.5" when parked. It does NOT drop all the way down like you see with so many Airmatic failures. When I start the car, it raises to normal height in about 10 seconds, and within a few seconds starts to drop again. It'll drop to the height it drops to when the engine is off, then rises back up again. This happens over and over. I can't use the car because I assume the pump is running constantly, and I don't want to burn out the pump. I have looked at the pump and the line to the strut and I see nothing that looks abnormal. I assume it's the strut. However, I don't understand if it's the strut leaking why doesn't sag all the way to fully deflated? Of course I can just replace the strut, but at about $600 per strut I hate to just throw a strut at the car only to find out he strut isn't the problem. I hooked the car up to the STAR machine but there are no suspension codes. Anyone have any input or ideas on this? It's the car not fully dropping down that has me confused.
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Old 12-29-2018, 12:14 AM
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I had a similar experience on my e500 while back , hard to explain but as the air bag settles when parked it curves to where their is a tear and air leaks from a certain point of the bag , its the strut fersure but again have it diagnosed before jumping in to it.

On the bright side the front strut is easy to install if that is the case
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Old 12-29-2018, 04:23 AM
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I’ve recently changed my stock strut to Arnott reman for $432. Didn’t have sag but car was making creaking noise on minor bumps. I first changed out all control arms, ball joints, front & rear stabilizer bars, rear air bags, & motor/trans mounts (all were original 12 y/o parts anyway) yet still hear noises. Finally I was trying to figure out where the noise came from and started pushing on the driver side front fender, it was bouncing not so much but with enough play that is noticeably different, compared to right side and it made the same creaking noises. Changed it and have a smooth quite ride. I only change driver side with Arnott, I replaced right side in 2015 with OEM AMG Strut ($800).

Last edited by MSG 55G; 12-30-2018 at 09:17 PM.
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Old 12-29-2018, 06:30 AM
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Originally Posted by MSG 55G View Post
Iíve recently changed my stock strut to Arnott reman for $432. .
Can you tell me where you bought your Arnott from?
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Old 12-29-2018, 08:28 AM
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Cheapest i can find is rockauto..
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Old 12-29-2018, 10:19 AM
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I got all my Arnott from CARID.com, they gives10% military discount. So got the front for $414 + $18 for shipping and $100 refundable core charged. I call them first to get discount before I place order online.

Another member mentioned on other thread that he ordered direct with ARNOTT site and it costed him 4 something with core.
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Old 12-29-2018, 10:24 AM
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370 +100 refundable core on rockauto.
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Old 12-29-2018, 10:26 AM
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Search the forum on ARNOTT, there are good discussions regarding strut; I went with the remanufactured cuz supposedly it retained the ADS(?).
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Old 12-29-2018, 10:28 AM
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Originally Posted by PieRat View Post
370 +100 refundable core on rockauto.
well I got Ripped!
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Old 12-29-2018, 10:33 AM
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Originally Posted by PieRat View Post
370 +100 refundable core on rockauto.
But I got free installation!
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Old 12-29-2018, 10:52 AM
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Yup, in poking around I see Rock Auto at $370 + $12 shipping to Houston, plus a refundable $100 core charge. Sounds like a good deal.

I'll fall on my sword here, admit my ignorance and ask what is ADS?

I bought the car with the struts that are in there already replaced sometime in the past, I have to search out the records on when they were done. My far away memory thinks they are already Arnott's in there.
I'm thinking that if I do the re-manufactured units (AS2300 - front right) vs. new (AS2737) I won't have to do the front left as well, as it should match what I believe to be an Arnott already on the other side. On Arnott's site they specifically have a note on the new unit description saying that if you do one you should do both. That note is not included in the description of the re-manufactured part. I assume that on the new part they changed the valving? I really don't know. Does any one have any info on this? If not needed I would really like to avoid doing both.
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Old 12-29-2018, 11:05 AM
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The ads is active dampening. When you adjust your suspension on the stock system the shocks change how stiff they are. Arnot new dont have this system, remanufactured retain it. If you replace a front with a new you probably want to change the other with a new to maintain the balance coz the shocks will be different stiffness
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Old 12-29-2018, 11:58 AM
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I have front Arnott & AMG struts, mismatched but I canít tell the difference. But then Iím No AMG expert extraordinare as to PieRat! Heís Da Man!
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Old 12-29-2018, 12:02 PM
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Yes but your arnotts are remanufactured so they should both have ads and be the same more or less. Even witb one arnot new and one amg strut up front i dont think it would be terrible but ive not tried it so dont quote me on that!!

hahaha just a fiend not an expert lol

Last edited by PieRat; 12-29-2018 at 06:38 PM.
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Old 12-29-2018, 06:31 PM
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Replace the strut. Stop overthinking it.
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Old 12-29-2018, 11:43 PM
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Yup, I agree. I'll just do it. Thanks to all.
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Old 12-30-2018, 12:31 PM
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Gonna hijack this, because I have a similar situation. I feel like itís the rear air bags but want confirmation

did the brakes and installed my E63 wheels last weekend, dropped the car, and the car looked SLAMMED not really thinking too much about it since I had the car in jackstands all weekend. Start the car, the pump runs. I rear end of the car raise a maybe an inch, still looked slammed, and then the pump stops yet still holds that little bit of air in the shock. It is possible for a bad shock even if all the air is not complete leaking?
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Old 12-30-2018, 05:55 PM
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Originally Posted by zhmorrow13 View Post
Gonna hijack this, because I have a similar situation. I feel like itís the rear air bags but want confirmation

did the brakes and installed my E63 wheels last weekend, dropped the car, and the car looked SLAMMED not really thinking too much about it since I had the car in jackstands all weekend. Start the car, the pump runs. I rear end of the car raise a maybe an inch, still looked slammed, and then the pump stops yet still holds that little bit of air in the shock. It is possible for a bad shock even if all the air is not complete leaking?
yes, change them both rear bags with Arnott. Easy to DIY. I had mine sag overnight for couple months and every morning it get pumped up. Should of changed them sooner. Thereís some good YouTube on install Arnott rear suspension air bags where you donít have to disassemble the whole rear end of car.

Last edited by MSG 55G; 12-30-2018 at 06:01 PM.
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Old 12-30-2018, 06:04 PM
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Originally Posted by zhmorrow13 View Post
Gonna hijack this, because I have a similar situation. I feel like itís the rear air bags but want confirmation

did the brakes and installed my E63 wheels last weekend, dropped the car, and the car looked SLAMMED not really thinking too much about it since I had the car in jackstands all weekend. Start the car, the pump runs. I rear end of the car raise a maybe an inch, still looked slammed, and then the pump stops yet still holds that little bit of air in the shock. It is possible for a bad shock even if all the air is not complete leaking?
assuming your 63 is 07-09???
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Old 01-02-2019, 12:07 AM
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Originally Posted by MSG 55G View Post


assuming your 63 is 07-09???

no I have an E55, I was just mentioning i did the brakes and installed a set of e63 wheels I purchased..

another quick question, what are the chances my problem not being my airmatic air spring but rather the self-leveling shock? After a bit more reading, I realized thereís an airbag and a shock. If this self-leveling shock were shot, would the car stilll be slammed?
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Old 01-02-2019, 02:20 AM
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Originally Posted by zhmorrow13 View Post



no I have an E55, I was just mentioning i did the brakes and installed a set of e63 wheels I purchased..

another quick question, what are the chances my problem not being my airmatic air spring but rather the self-leveling shock? After a bit more reading, I realized there’s an airbag and a shock. If this self-leveling shock were shot, would the car stilll be slammed?
My thoughts were same as yours, trying to eliminate plausible causes before having to change rear air bags or front struts; for me, I figured my car is 12 y.o. and needing new bags won't hurt. I've changed all four suspensions without changing the original air pump and self-leveling shock mechanism, they are working fine. No more sagging after I replace rear air bags, no more noise after replace front strut, my car has 172k miles and still loving it.

Last edited by MSG 55G; 01-02-2019 at 02:24 AM.
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Old 01-02-2019, 02:24 AM
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Originally Posted by MSG 55G View Post
My thoughts were same as yours, trying to eliminate plausible causes before having to change rear air bags or front struts; for me, I figured my car is 12 y.o. and needing new bags won't hurt. I've changed all four suspensions and the original air pump and self-leveling shock mechanism working fine, my car has 172k miles and still loving it.
Good to know. Iím at 160. Did the front struts a few years ago and theyíre fine. Iím going to buy my rear air bags, and air filters for the compressor within a day or two. I wonder if thereís a way to oil this compressor to keep it running smoothly/improve how it runs...
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Old 01-02-2019, 02:30 AM
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Originally Posted by zhmorrow13 View Post



no I have an E55, I was just mentioning i did the brakes and installed a set of e63 wheels I purchased..

another quick question, what are the chances my problem not being my airmatic air spring but rather the self-leveling shock? After a bit more reading, I realized thereís an airbag and a shock. If this self-leveling shock were shot, would the car stilll be slammed?
go under driver side bumper and check out air pump to see if any hose are loose or rotted out. I found an air hose cracked on my air pump when I was installing my HE/IC pump.
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Old 01-02-2019, 02:33 AM
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Originally Posted by MSG 55G View Post
go under driver side bumper and check out air pump to see if any hose are loose or rotted out. I found an air hose cracked on my air pump when I was installing my HE/IC pump.
yeah. A ďUĒ shaped hose running from the filter to the compressor inlet was cracked. I replaced that when I did my brakes. Thatís when it dawned on me that I should replace the filters too. OEM filters are only $14 for a pair.
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Old 01-02-2019, 02:51 AM
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Originally Posted by zhmorrow13 View Post


yeah. A ďUĒ shaped hose running from the filter to the compressor inlet was cracked. I replaced that when I did my brakes. Thatís when it dawned on me that I should replace the filters too. OEM filters are only $14 for a pair.
Yeah....I just sniped off the cracked end and re-clamped the hose. Didnít notice any filters, will check it out next time Iím under car.

You have p/n?
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