Yes & 10mm is one I have.

I prefer to use a flare because it is small & brass. Don't want any more surprises.

Thanks!

I noticed this morning in my flat garage the left (Arnott) side looks a bit lower. Is their spring shorter?

The reservoir comes tomorrow & I hope to get it & the bag into the right side Wednesday morning.

Assuming you have the same type (standard for both side), don't draw any conclusions until you've replaced both bags and taken care of your (potential) leak with the reservoir.

There is no leak, the clip broke prior to removing the hose to the passenger bag that is not yet leaking.

I stopped, ordered the reservoir and am waiting to replace the other bag at the same time. I have a Sport btw.

Reservoir came. Going to try to fix the clip, it looks like it just slips in.

http://i20.photobucket.com/albums/b2...psab9d9295.jpg

For those wanting BMW's clip removal "instruction"

http://i20.photobucket.com/albums/b2...psf5b412e3.jpg

Went in to r&r the reservoir & bag pulled everything apart up top, loosened lugs, pulled fuse, jacked up X, opened banjo nut releasing air, got under and found a bag to my eye that is close to new.

The old one was almost grey, this is black, it has no cracks or other signs of issues so I pulled the reservoir and put it all back together.

http://i20.photobucket.com/albums/b2...psd82f976a.jpg

Rear right side usually lower than other side!
 

Thanks very well done:thumbup:
your pictures & write up are very much appreciated, congratulation!!!
However I had no clue about this entire system in my (01 X5 4.4i) N'till
I came up to your thread, and realized how this system really works.

Here's my issue: The right rear side of my car gets lower sometime.. or
after being parked a long time specially overnight. But the confusion I have
it just that: whenever I press the button remote to unlock the car, immediately
the lower side of the vehicle starts to lift-up automaticly to it's normal height.

It does that all the time when I unlock the car, by pressing the unlock button
on my remote key, it just lift the side up. What do you guys think?
(Could it be the Air spring gone bad, or the AIR SUPPLY CONTROL UNIT #13 that suppose to send power to the unit that gone south:dunno:

Another thing it just that, occasionally you might wake up one day and find
the car stayed at it's normal height, after being parked for several hours.

Do you have any dash light for the air suspension? If no, it would (ideally) good to check your car's fault codes with INPA, GT1 or any of the software packages that do this.

Have you measured the height (left & right) at the wheel arch and compare the differences on "good days" and "bad days"?

IF you don't have a dash fault light - the most likely issue is a slow, intermittent leak of the air bags. If you know that the air bags are the original build - it's a good time and idea to pro-actively replace them, especially as your symptoms indicate this. A defective height sensor will give you a dash code (I've experienced this).

I recently replaced my rear bags (always do this in pairs), a 2 hour job start to finish (I have jacks, stands, air tools, etc. at home). I can endorse Arnott products.

I would expect that the remote trigger initiates the rear suspension power circuit. Sometimes your RR corner is down and the height sensor tells the compressor to start raising this corner.

I intended to replace both bags, bought both. When I finally got to the second one, delayed by the damn reservoir clip I found a new adjacent bag. I have had no issues since I replaced the leaker so decided to leave the good bag in.

Now I have it if/when it needs to be replaced.

I understand but there could be some difference in "spring rates" between the two bags, as one is fully new, the other is nearly new. More importantly are they both from the same OEM manufacturer?