Left Rear Suspension Lowered
 

What would cause only the left rear suspension to lower?

The Self Leveling Suspension Inactive error message is being displayed, however I do not have that option installed.

rear air bag

Will it be a problem driving on it until next week when I can get it into the shop?

It will make your air pump work extra,it may become noisier after that,at least noisier.

If its sagging significantly I'd highly recommend you not drive it unless absolutely necessary, as riding around on a deflated bag has the potential to create some serious damage in the likely event you bottom out.

If you replace the left side air bag, you should also do the right side at the same time.

https://www.youtube.com/watch?v=t_yw...IfqPFhlOYcLt6Q

This is common, I also had this on my 04 4.4.

I noticed if after i started the car and heard the pump work, i walk up to that fender and pull up on it and wait a sec and my airbag began to inflate.

I kept driving like that till i hit a bump, which it then deflated again.

IN MY opinion and the way i did for a few days, i think its safe to drive, just carefully.

^AS LONG AS you remove all the airsuspension fuses so the pump quits trying to work so the pump/accumulator wont fail which would be much more expensive/

just replace damaged one , don't replace other .

Well first, you should always replace the air suspension in pairs because you will always have a variance in height between old vs. new. Plus the r&r is so easy, it would make more economic sense to have both done at the same time.
Second, the left rear of your X is sagging and you have an SLS error, but you are saying you don't have the option installed. It's either you have the option installed or you don't have 4 corner adjustable suspension installed. I believe every X5 in the E53 lineup came with self leveling suspension.

Are you the same person that only replace just a shoe with a hole in the sole?

:rofl:

Thanks to everyone for their input.

After some inspection it appears that the air bag may be the problem.

It filled up this morning but deflated in less than a quarter of a mile.
Replacing the air bag does not look like too difficult job according to the Bentley Manual.

Add that to the list of repairs. 204,000 miles. I'm not too upset.

Thanks again.

UPDATE:
After I put everything back together, ordered left and right air springs and posted the message above I drive down and filled up the fuel tank. The air spring fills up when I started the car and it was fine while I filled up the tank. It was fine for the next 10 miles as I head into town. One mile from my destination the error mesage comes on and the air spring slowly deflates.

check all the air hose connections, and the hoses. You know you got to squeeze the connection at the air bag in order to open the clamp.

Off topic: Does your signature change automatically or something?? I swear i thought it said 200000k miles yesterday

In my case, I just had to do a height re-calibration as I had a ton of work done lately on my suspension. My left rear was about an inch lower than the other corners, did a recalibration with DIS and all is holding well for now.

I added that to the signature shortly after the original post. It is a jpg. Doesn't change automatically. That would be neat though.

I replaced the left Air Spring this morning - Very easy in my opinion.

The compressor is not running and inflating the bag. Is there a reset function I need to perform?

Some have had problems with that, I would lower the vehicle most of the way but still leave supported with the jack, start the car and remove/reinstall fuse 87 in the trunk, see if that jump starts the compressor.

Update: I drove to the office and did some work. Well I wouldnt call it work.

Left to go see the local mechanic and when I started the vehicle the compressor engaged and inflated the air spring. After ten minutes of driving the error light went off. Back to normal opperations.