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      03-07-2019, 08:26 AM   #67
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Mine doesn't level to save my life. It takes a damn act of Congress with manipulating the arms under the car. It will inflate and deflate and level out just fine when I run ISTA but even with all new bags it will randomly adjust to weird heights after some time. I'm starting to think my sensors are going bad but that's just odd and not indicated when I run the test on them in ISTA. JUst frustrating to all hell trying to get my back end leveled and even. I also have to have the driver side set different than the passenger. I noticed the sensors themselves seem to be mounted in slightly different positions.
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      04-02-2019, 02:26 PM   #68
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Quote:
Originally Posted by bmwMthusiast View Post
Just replaced mine (60k miles) with the arnott's and was very easy. I was too many steps away from getting and using ISTA confidently (macbook, no experience, etc) so I just disconnected the battery and punctured the bags to deflate.

As for intermittent issues: Mr. 47's pic shows the dry rot right where the bag rolls onto the lower mount. After inspecting the bags I decided not to do it bc they looked way better than his pic. I moved on to working on my exhaust and a few hours later, heard a hissing and confirmed with soapy water they were leaking.

Seems like the car has to adjust to the right height to position that dry rot right on the roll. So depending on what angle the car is parked/snow under one wheel; it could change the outcome.

Just replace them with Arnott and be done. Easy to do and trying to save $100 on an $80k car with ebay parts isn't worth it
So, disconnect battery, puncture to deflate, reinstall new Arnott ones with dust cover per 1st post, reconnect battery and allow them to inflate fully, lower down after fully inflated and drop jack to let it settle, then done??
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      04-02-2019, 03:05 PM   #69
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Quote:
Originally Posted by jmeyer15navy View Post
So, disconnect battery, puncture to deflate, reinstall new Arnott ones with dust cover per 1st post, reconnect battery and allow them to inflate fully, lower down after fully inflated and drop jack to let it settle, then done??
That method will too work and as others has mention before, you really don't need ISTA/D i only used ista/d per BMW instruction and i'm kinda follow to the book person. However its not advisable to puncture the airbag unless its deflated enough to safely do.

So if the airbag leaking slowly on its own i'd just remove the compressor fuse or D/C the battery and let it squat to bump stop and then remove the airbag by then it should have little air.
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      04-03-2019, 10:20 AM   #70
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Don't need to remove the fuse or disconnect battery. The pump isn't powered unless the car is on/position 2 and ista just helps guarantee the bellows empty and fill when you want them too. For me I've had issues getting the pump to activate and fill the bags when I want. Either an issue with the sensor or just my luck.

If you puncture I would slowly drill a small hole in the bag as this will be less violent and or dangerous.
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      04-03-2019, 10:41 AM   #71
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Originally Posted by Russmov View Post
Ok, I'm REALLY starting to believe that my X5 lowers the backend in my driveway to try and stay level.
I had my car in my driveway backed in, and that made it slope down in the front for about 30 minutes . The back released the air to sit level.
I've had it parked forward so the front is higher than the back for a few hours now, and the back Is still up.
That looks like a leak. I've never seen any car that levels the car in that way.

Well except maybe a bus.


Also get the Arnott ones. Replaced two airbags on a 2008 S-Class about two years ago also with Arnott ones; perfect to this day.
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      04-03-2019, 10:45 AM   #72
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Quote:
Originally Posted by alphaod View Post
Quote:
Originally Posted by Russmov View Post
Ok, I'm REALLY starting to believe that my X5 lowers the backend in my driveway to try and stay level.
I had my car in my driveway backed in, and that made it slope down in the front for about 30 minutes . The back released the air to sit level.
I've had it parked forward so the front is higher than the back for a few hours now, and the back Is still up.
That looks like a leak. I've never seen any car that levels the car in that way.

Well except maybe a bus.


Also get the Arnott ones. Replaced two airbags on a 2008 S-Class about two years ago also with Arnott ones; perfect to this day.
I really don't think it is. I haven't ran into the issue again since pulling in my driveway forward instead of backing in.
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      04-03-2019, 10:53 AM   #73
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I really don't think it is. I haven't ran into the issue again since pulling in my driveway forward instead of backing in.
Well I hope it's nothing.

I often park front forward on a down slope and I've never seen it sag like that even after a few weeks.
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      04-04-2019, 05:32 AM   #74
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I replaced my with the Arnott 2642 from rockauto and it was still sitting low and not sitting level overnight, sometime the driver side will be lower also.

I bit the bullet and bought the bmw oem ones from FCPeuro for 800$
it sits level, rides smoother and I get free replacements if its leaks .

Not sure if you all changed to the Arnott one and have the leveling issues but I think either my was defective or Arnott is not exactly compatible with our F15 as the E70 also uses the same part number per Arnott website.

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      04-04-2019, 05:39 PM   #75
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Quote:
Originally Posted by atopa2002 View Post
I replaced my with the Arnott 2642 from rockauto and it was still sitting low and not sitting level overnight, sometime the driver side will be lower also.

I bit the bullet and bought the bmw oem ones from FCPeuro for 800$
it sits level, rides smoother and I get free replacements if its leaks .

Not sure if you all changed to the Arnott one and have the leveling issues but I think either my was defective or Arnott is not exactly compatible with our F15 as the E70 also uses the same part number per Arnott website.

John
This is why ISTA is worth having if you do this. I can almost guarantee it just needed the sensors reset. Did you try adjusting them via the links in the rear? PS I can replace the bags 4x for what you paid for one set of oems. Wish you woulda come here before jumping to paying.
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      04-05-2019, 08:03 AM   #76
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Quote:
Originally Posted by Maverik259 View Post
This is why ISTA is worth having if you do this. I can almost guarantee it just needed the sensors reset. Did you try adjusting them via the links in the rear? PS I can replace the bags 4x for what you paid for one set of oems. Wish you woulda come here before jumping to paying.
The thing is it levels up when the ignition is on , you hear the pump and see the rear rising up.
The ride is ok, level but drops after sitting for several hours .
as I said maybe I got faulty air springs.
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      04-06-2019, 01:12 PM   #77
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Quote:
Originally Posted by atopa2002 View Post
Quote:
Originally Posted by Maverik259 View Post
This is why ISTA is worth having if you do this. I can almost guarantee it just needed the sensors reset. Did you try adjusting them via the links in the rear? PS I can replace the bags 4x for what you paid for one set of oems. Wish you woulda come here before jumping to paying.
The thing is it levels up when the ignition is on , you hear the pump and see the rear rising up.
The ride is ok, level but drops after sitting for several hours .
as I said maybe I got faulty air springs.
More likely you're leaking from the air line seals. But maybe.
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      04-06-2019, 06:39 PM   #78
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I just replaced mine last weekend (127,000kms on a 2014 model) with the Arnott ones. It had been sitting really low some cold mornings until last weekend it wouldn’t even inflate them. Started the car, and you could hear hissing from both sides and the compressor going nonstop. Pulled into the garage and swapped them both in 90 minutes including getting the car on stands and bleeding the air lines at the compressor. I went with Arnott because OE obviously only lasts 4-5 years and the Arnott ones have a lifetime warranty. Really easy job actually, pleasantly surprised.

So far they ride like stock and don’t leak. Hopefully these last a while.
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      04-06-2019, 10:34 PM   #79
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Originally Posted by Ramps View Post
I just replaced mine last weekend (127,000kms on a 2014 model) with the Arnott ones. It had been sitting really low some cold mornings until last weekend it wouldn’t even inflate them. Started the car, and you could hear hissing from both sides and the compressor going nonstop. Pulled into the garage and swapped them both in 90 minutes including getting the car on stands and bleeding the air lines at the compressor. I went with Arnott because OE obviously only lasts 4-5 years and the Arnott ones have a lifetime warranty. Really easy job actually, pleasantly surprised.

So far they ride like stock and don’t leak. Hopefully these last a while.
Can’t go wrong with arnott and if anything goes wrong their customer service is top notch. I’m 6 months in and had a few very cold mornings and it just sits right and never squats at all.
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      04-07-2019, 09:45 PM   #80
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Just seen this video pop up on my recommended list. Not exactly what we seem to be encountering, but interesting nonetheless.


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      04-08-2019, 01:33 PM   #81
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Originally Posted by Russmov View Post
Just seen this video pop up on my recommended list. Not exactly what we seem to be encountering, but interesting nonetheless.


Hmm that's probably sometime that i'd do for preventive maintenance, nice find!
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      04-08-2019, 01:36 PM   #82
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Quote:
Originally Posted by Mr.47 View Post
Quote:
Originally Posted by Russmov View Post
Just seen this video pop up on my recommended list. Not exactly what we seem to be encountering, but interesting nonetheless.


Hmm that's probably sometime that i'd do for preventive maintenance, nice find!
Yeah I thought some of the members could find this helpful.
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      04-10-2019, 11:44 AM   #83
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Quote:
Originally Posted by jmeyer15navy View Post
So, disconnect battery, puncture to deflate, reinstall new Arnott ones with dust cover per 1st post, reconnect battery and allow them to inflate fully, lower down after fully inflated and drop jack to let it settle, then done??

Yea. Pretty sure I had to lower the jack a little to get the compressor to kick on. Then after pulling the jack, a few more minutes to fully settle. Hasn't been a problem since
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      04-11-2019, 12:48 PM   #84
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Quote:
Originally Posted by bmwMthusiast View Post
Quote:
Originally Posted by jmeyer15navy View Post
So, disconnect battery, puncture to deflate, reinstall new Arnott ones with dust cover per 1st post, reconnect battery and allow them to inflate fully, lower down after fully inflated and drop jack to let it settle, then done??

Yea. Pretty sure I had to lower the jack a little to get the compressor to kick on. Then after pulling the jack, a few more minutes to fully settle. Hasn't been a problem since
You can do that or just pop off the plastic rear link and manipulate the arm to activate the pump. Need the key in the car and the car on (not started)
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      04-15-2019, 07:06 PM   #85
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Awsome DIY

Thanks Mr.47, this is well done.

I joined this forum to better understand what was going on with the rear suspension on my 2015 X5. Lucky for me, I both the 4 years, unlimited millage extended warranty from the dealer when I bought the car.

By reading the thread, I understand I'll have to replace it in 3-4 years from now.

Anyone knows why the OEM part is so weak?
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      04-16-2019, 05:00 PM   #86
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Thanks Mr.47, this is well done.

I joined this forum to better understand what was going on with the rear suspension on my 2015 X5. Lucky for me, I both the 4 years, unlimited millage extended warranty from the dealer when I bought the car.

By reading the thread, I understand I'll have to replace it in 3-4 years from now.

Anyone knows why the OEM part is so weak?
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      05-03-2019, 06:32 AM   #87
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DIY rear air spring replacment

Thank you very much for your introductions !
Easy to know.
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      06-02-2019, 07:40 PM   #88
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Finally got around to do this and it wasn’t too bad. 1.5 to 2 hours. Wasted 15-20 minutes trying to fool with the tabs at the bottom but I found that they pop out with a swift pry up one the bag on the top side. Didn’t need to deflate since my were sagged out already. The arnots had new fill tube fittings so wasted another 10-15 minutes on the first one trying carefully remove and save the inside piece. Really could be a 1 hour job but hopefully won’t need to do it again. Props to mr 47 and mav for the step by step and related commentary.
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