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#1
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Slight air suspension sag on the driver's side
My question is this, without tearing open panels where are the driver's side lines routed to/from? Is there a vehicle diagram out there of the line routing?
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Current stable: 2005 LMB X5 4.8is, 2000 LMB M5, 2004 JB M3 6spd coupe |
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#2
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Must be a very slow leak at the airbag itself. I haven't seen any leak issue with the air line. Didn't know of any diagram for the air line
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00 E39 DINAN S1 //M5 (82k miles) 06 E53 DINAN 4.8iS, born 2/18/2006 (126k miles) http://www.xoutpost.com/bmw-sav-foru...s-my-dslr.html 90 Straman Z32 TwinTurbo Convertible, (1 of 44 ever made) 5 speed, 444rwhp/451rwtq 01 360 Novitec Spider F1 (26k miles) |
#3
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Nothing to add to this convo yet but I'm dealing with the EXACT same thing for about 2 weeks now.
Since my airbags are original and 12 years old, I just bought two new Arnott brand air bags (From RockAuto.com - even better price that through Arnott directly) and should receive them today. AND Even if this does NOT solve my problem, its new air bags so they should last a LONG time (lifetime warranty too). I'm wondering why its one side only and I can hear NO hissing but I can watch the level drop, by about 20mm, as soon as it stops pumping up vehicle (I tested with INPA to make sure compressor works on left side)
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I swear, my cars are like a girlfriend. Sometimes its a rough ride, sometimes its smooth motorin'. Sometimes she doesnt like how i treat her and sometimes i dont like how she behaves. BUT at the end of the day, she loves it when I am inside her. _______________________ '91 850i '05 X5 4.4i '09 Clubman S Last edited by Clockwork; 02-15-2017 at 12:00 PM. |
#4
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If a single bag leaked would that cause just one side of the vehicle to sag? We aren't talking a major sag maybe an inch or two overall. Whatever is causing the leak is somehow isolated from the passenger's side.
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Current stable: 2005 LMB X5 4.8is, 2000 LMB M5, 2004 JB M3 6spd coupe |
#5
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Quote:
Did you try the soapy water at the crease on the airbag itself? Raise the SAV then spray the soapy water on the crease mark to see if it leaks.
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00 E39 DINAN S1 //M5 (82k miles) 06 E53 DINAN 4.8iS, born 2/18/2006 (126k miles) http://www.xoutpost.com/bmw-sav-foru...s-my-dslr.html 90 Straman Z32 TwinTurbo Convertible, (1 of 44 ever made) 5 speed, 444rwhp/451rwtq 01 360 Novitec Spider F1 (26k miles) |
#6
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Only the driver's side is sitting lower (both front and rear), and even then its only an inch or two after sitting a few hours. If an air bag were leaking then wouldn't just one corner of the vehicle sag and not an entire side? I also was starting to think perhaps the level sensor may be to blame but that doesn't make sense if the vehicle sags over time which would indicate an actual leak.
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Current stable: 2005 LMB X5 4.8is, 2000 LMB M5, 2004 JB M3 6spd coupe |
#7
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I would start with calibrating the ride height, then see if the sagging problem return.
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00 E39 DINAN S1 //M5 (82k miles) 06 E53 DINAN 4.8iS, born 2/18/2006 (126k miles) http://www.xoutpost.com/bmw-sav-foru...s-my-dslr.html 90 Straman Z32 TwinTurbo Convertible, (1 of 44 ever made) 5 speed, 444rwhp/451rwtq 01 360 Novitec Spider F1 (26k miles) |
#8
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I was experiencing front bag sag for a week or so on one side overnight. It would recover upon starting and pump operation.
Then it became both front bags sag overnight. Would recover but scary to go too far with a potential problem brewing. Mid 80'sK miles on originals so I bought aftermarket rebuilt bag and strut combo (I did not want to pull the 80K strut and put a new bag on an old strut) for the front and aftermarket rear bags. I also received a $40 per front strut rebate and free core shipping back to them. Once installed, all front bag sag ceased. Here they are for $509/pair + $80 core rebate 2000-2006 BMW X5 E53 Front Air Suspension Air Struts - New Pair | eBay Mike
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Mike Dallas, TX & Appleton, WI 2003 E53 4.4i Pearl Beige 2003 E46 330Xi Monaco Blue 2007 E90 335Xi Black Sapphire Metallic 2011 F25 X3 28i Black Sapphire Metallic Last edited by semcoinc; 02-16-2017 at 08:58 PM. |
#9
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Quote:
__________________
I swear, my cars are like a girlfriend. Sometimes its a rough ride, sometimes its smooth motorin'. Sometimes she doesnt like how i treat her and sometimes i dont like how she behaves. BUT at the end of the day, she loves it when I am inside her. _______________________ '91 850i '05 X5 4.4i '09 Clubman S |
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