GovernmentIssue

So after spending the morning poking around, I've hit a wall. My 04 e55 decided it wants to have a seat in my driveway a couple of days ago. The front bags fill properly but the rears are flat on the ground.

I received the visit workshop warning for a couple of days and then the following morning, the red airmatic warning came on.

After a a few hours of reading, I had a look at the trunk tank, that seems fine, couldn't find a visible line that was leaking, and plan on checking out the valve in the engine bay next.

Its my my understanding that since the front inflates fine, it shouldn't be a compressor issue, and that it should likely be between the rear lines, the rear air spring, or the valves.

Am I headed in the right direction?

Blade Canyon

The E55 is my daily driver, and it has to be reliable on 400 mile trips. That's why I yanked the whole airmatic system once it started having problems and switched over to Strutmasters coilovers. Arnott and BC and other companies also make non-air replacement systems. The ride is the same as before, but I don't worry about waking up to a slammed car.

new55

what is the light fix module version of the stutmaster product ? is that for the error message or for cars with active headlamps ?

Notdke9fdkfjekrjrkj123

have you checked for fault codes?

bbirdwell

GovernmentIssue, PM me your email address. I can send you some trouble shooting tips.

tw2

Check everything in the back with soapy water. I would replace the rears with Arnotts. It also gets rid of the reservoirs.

Blade Canyon

The "Light fix" module stops any Airmatic error messages after the coilovers are installed. I've heard you can just pull the fuse for the Airmatic pump to get the same result. I have the "module" in mine.

The two LEDs are illuminated on the shift console button for sport suspension. I could lift that panel and yank the wires, but it was really a pain to get that shift panel back in place properly last time.

moehler

OP, I'd check the the rear height sensor link and make sure that it's where its supposed to be and plugged in and not damaged. Also behind the diff there's an airline distributor that runs air to both rear bags, I'd check that for any loose or split connections.

GovernmentIssue

none were found

Max.H

Same thing wth my car recently. It was rear bag leaking, I bought new arnotts and all is great, very happy. Bite the bullet and buy the rear air springs. GL

StephenSNY

Hey GovernmentIssu,
I had/have the same issue. It is my Driver Side Rear ONLY and just like yours. So, after talking to many people and biting the bullet I bought 2 Arnott A-2725's from Arnott Direct and paid under $ 400 each for them and just got them myself today. I have not put them in yet, as it will be a next week project for me here. The Arnotts look easy and with their price match around $ 800 for both side is what I decided to do myself.


Your issue is just like mine and seeing your picture reminds me of my car. Here is what was happening to me. I live in NY, so it is colder now and happening many times a week here now. But I could get in my car, start it up and the Air Spring would inflate and I could drive the car again. Now I have found a range of about 10-15 miles before the rear left end starts to sag again and I have to stop the car and wait a few minutes with the car off and then turn it back on and the bag will inflate again and I can drive again. Instead of doing this, I was told this was my issue, the Air Spring so I spent the $ 800 on both side. Hopefully this solves my issue and I was told NOT to drive my car around like I have been as I will burn out the compressor that inflates it. That's my plan anyway. I hope that helps for you. If you find something different please let me know, I just got these and they are sitting in the box until next week.

Hulk

Look in the classifieds I have both arnott rears for sale

95ONE

Mine recently did the same. My best guess is that there is a valve inside the bags that just go bad. whatever the reason, I replaced them with new Arnotts. Fixed.

FLINTY55

I had the same issue with the rear bags in cooler months. However, my front left gave up the ghost. I replaced a month ago and now my rear bags have stayed at attention since the repair. I don't understand why this happened but so far so good... 2 weeks sitting and no sag.