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#21
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2005 X5 4.4i Build 04/05 Maintenance/Build Log Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles) 2006 X5 4.8is Build 11/05 Maintenance/Build Log Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles) 2010 X5 35d Build 02/10 Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles) |
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#22
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Quote:
In the late 90's early to mid 2000's BMW and other manufacturers used "environmental friendly" plastic & rubber.....and now they just fall apart. Hence timing chain guides and ALL the other plastics parts that have broken on my X5. ESC Tuning is great but these guys have all oem parts at pretty good prices. WORLDPAC - Parts & Accessories
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2002 X5 4.4i Sport Wheels 2014 X5 35i M Appearance & suspension package 1995 Porsche 993 1972 Porsche 914-6 2020 GLE 450 Twin Turbo 2019 Alfa Stelvio 500hp Quadrifogilo Many motorcycles |
#23
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This may be shutting the door when the horse has already bolted (hope you want to keep to air suspension rather than coils) - something I found weird when I assumed I had an air leak;
While the car was sitting with ignition off, one side was deflating, so of course I assumed I would have to replace the bags AGAIN... but one time I left it with the suspension in 'off-road' position... it DIDN'T deflate! So I figured I had a screwy control module, not a leaky system. I reset all the heights with INPA and all is good now, parked in either position. I will eventually get round to replacing the module, but there's a ton of spending to do on it first
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---------------------------------------------------------------- 2006 X5 4.8iS (facelift) in Imolarot + Ivory leather & alcantara headliner 1999 E46 323i in Imolarot II + Grey nappa 1990 E30 320iSE Sterlingsilber |
#24
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Quote:
https://www.bmwautoparts.net/en/sear...%0937146773999 |
#25
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Going to have to do some digging. Thank you for posting your experience.
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2005 X5 4.4i Build 04/05 Maintenance/Build Log Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles) 2006 X5 4.8is Build 11/05 Maintenance/Build Log Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles) 2010 X5 35d Build 02/10 Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles) |
#26
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Praying for you, man...
The air suspension is such a pain - I was particularly unsure since I got my EHC module from a used parts breaker!! … but the ride is so comfy on air springs
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---------------------------------------------------------------- 2006 X5 4.8iS (facelift) in Imolarot + Ivory leather & alcantara headliner 1999 E46 323i in Imolarot II + Grey nappa 1990 E30 320iSE Sterlingsilber |
#27
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I have a friend with a leaky bag. If he waits too long and it deflates too much it won't auto fill. He can use foxwell to force it once and then it will auto fill/level again. A similar mechanism may be behind why the hide height button worked
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#28
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Okay, have not done any diagnostics as I am waiting to get the wife's x35d out of the garage. Just got the trans valve body back from being rebuilt for that so it will go in tomorrow and I'll put the front end back together (headlight work).
So in the meantime I decided to proactively do some parts ordering. Rather not need it and have it than need it and not have it sort of thing. Bought this whole assembly for $100. Supposed to be tested and working. Supposed to be. I bought it for the valve/solenoid assembly as a new part is $450 and if that turns out to be the problem, having a good used unit is usually a good idea.
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2005 X5 4.4i Build 04/05 Maintenance/Build Log Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles) 2006 X5 4.8is Build 11/05 Maintenance/Build Log Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles) 2010 X5 35d Build 02/10 Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles) |
#29
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Solved... Hopefully
Update: So, I think this is solved? Truck has been aired up at normal ride height for 2+ days now and is holding. Was waiting a bit before posting this to be sure.
Symptoms: Both front air springs will slowly deflate over time. When the problem started it would take a week of being parked to fully deflate the front end. By the time I made the repair it would only take 6-10 hours (overnight) before the front fenders were both sitting on the front tires. So, in my case, the valve seems to have been the problem. I focused on it as it is the only thing that ties the two front air bags together at one place, in one component. I used my original accumulator/pressure sensor and paired it with the replacement used control valve that I bought off Ebay. The build date of the replacement was newer than my "failed" valve so at least it's a few months younger. Valve part number: 37246779713 Replacement was not overly complicated but a bit tedious due to the giant plastic windage tray that covers the accumulator, lines, and control valve. Once you get that off (be sure to order replacement rivets and single use push pins) it's 6 bolts to remove the accumulator and valve combination. And trust me, you have to remove it to be able to remove the control valve. The fasteners will be seized on there and you WILL break the rubber vibration isolators if you try to remove it in place. Ask me how I know. Glad I had extras on the spare unit I ordered. Follow the TIS procedures before removing the air lines as far as pulling fuses and lines/depressurizing the system so as to not damage anything. After getting things swapped over and reinstalled, follow TIS for repressurizing and inflating the bags. You'll need a Foxwell or ISTA/autologic/similar to do it. TIS Air Accumulator Removal TIS Air Control Valve Removal TIS Draining and Filling the System I disassembled the old control valve and it appears the gasket between the two sections on the front bag control valves has flattened to the point of a slight leak. I think if I resealed it with gasket maker it would be perfectly functional again. The 2 o-rings around the pistons looked fine. That's my theory anyway. I originally thought the vent valve might have been stuck or something for the front bags, but after dissection think it's the gasket. Looked around for replacement gaskets & parts from Wabco, but it appears they only sell the entire valve.
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2005 X5 4.4i Build 04/05 Maintenance/Build Log Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles) 2006 X5 4.8is Build 11/05 Maintenance/Build Log Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles) 2010 X5 35d Build 02/10 Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles) Last edited by crystalworks; 05-21-2020 at 10:03 AM. |
#30
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Great job CW, although I always cringe when reading about problems on here as the White Witch seems to take it as a challenge to breakdown or wear out as soon as I finish reading a post.
Sent from my SM-A730F using Tapatalk
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"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course |
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