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#11
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the sport air springs are a bit shorter when installed (i have both comfort and sport springs) The connector on the sport bag is different than the one on the comfort bag. the arnott bags come with a new clip, i had to test fit it to make sure it would work, it did, had to press it on pretty hard, but it fits! It is possible to install either bag easily ! most have the comfort bags (as verified by my supplier! he had to double check my order! ) when i discovered i had comfort springs back there, and i ordered the sport ones, i had the same questions! turns out the sport springs are a bit stiffer, (if an airbag can be stiffer!!) they lower the back of the truck down a tiny bit (i would say less than 15mm (3/4 inch), they dont make much difference in ride quality as far as i can tell. psychologically they make me feel like i am going faster! whether or not they affect aerodynamics i dont know!
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2003 X5 3.0i (02/2003) sport package, Sapphire black metallic / Black Dakota Sport seats. compass mirror retrofit, trailer hitch retrofit, Prodigy P2 trailer brake controller installed, PDC retrofit, Lumbar support retrofit. heated rear seats retrofitted. Running boards retrofitted and subwoofer install in progress. 4.8is Brakes installed front and back. Bluetooth TCU installed, Rear Fog lights installed. Retrofitted reclining rear seat backs. |
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#12
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I checked the BMW vin code and it shows I have sport suspension, I have read that 4,8is come with comfort despite being the sport model. I ended up calling the dealer and they ran my vin and conformed the rear air springs are comfort and not sport. Sent from my iPhone using Tapatalk
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2004 BMW X5 4.8is |
#13
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I plan to tow a trailer with my X5, I will do a couple test runs, and compare. the air springs are easy to re and re!
the roads are pretty slick here, so i havent had any chance to really test out the "sportiness" of the new bags. either way, new bags seem to be better than the old ones! yes, the old ones have more range as far as height goes, ??? maybe thats important!? not sure!
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2003 X5 3.0i (02/2003) sport package, Sapphire black metallic / Black Dakota Sport seats. compass mirror retrofit, trailer hitch retrofit, Prodigy P2 trailer brake controller installed, PDC retrofit, Lumbar support retrofit. heated rear seats retrofitted. Running boards retrofitted and subwoofer install in progress. 4.8is Brakes installed front and back. Bluetooth TCU installed, Rear Fog lights installed. Retrofitted reclining rear seat backs. |
#14
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From what I have come to understand, the sport air springs are for sport pkg E53s WITHOUT the height selection option (the 3 button ride height selector in the dash).
ALL other E53s take comfort air springs.
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'03 X5 4.4 Sport, last of the M62s (8-03 build date) I believe in deadication to craftmanship in a world of mediocrity! |
#15
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Yes the sport air bags should not be used on the 4.8is rear.
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#16
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Correct! Comfort bags are needed for articulation of suspension - EHC2 models having Sport suspension (3.0 and 4.4 if equipped optionally and all 4.8iS as standard equipment) all require comfort bags -
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2018 Ram 2500 6.7L Cummins 68RFE 19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed 2013 X5 35D (CEO's) - Born on 5/17/2013 - 82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards |
#17
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I just received the following information from my lead engineer that you requested.This was 3k miles ago. I've since had the X through many ups and down of the suspension, many different loads for the system to auto-adjust to, and plenty of corners to test out the "sport" load- all issue free. There stays a slight and welcomed tightness at the rear.
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04 X5 4.8is | Sapphire Black + M Alcantara, 75K |
#18
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Thanks for following up with info and personal experience.
I nominate you for the "TrailBlazer Award".
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Become a BMW CCA member! Click HERE to join and feel free to use my BMW CCA member #191509 as a referral.
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#19
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Hi, has anyone got to the bottom of this as I made the mistake of changing the rear air bags (cheap Chinese type which said they do both sport and comfort) a few years back.
I’ve noticed the bags are rubbing on the frame/chassis on the vehicle hence I was looking to replace for Arnott type but confused which ones to get sport or comfort 🤪 If anyone can help out that would be great. Thanks guys 👍 |
#20
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All seems fine but the ride is like bumpy bill, I wish I’d gone with the factory comfort ones instead of sport. That’s if it has anything to do with the bags and not the shocks 🥴 Anybody shine a light, I now have Arnott front bags and shocks, it’s just the rear end. Also do all 4.8is have the 80mm rubber bump stop in the rear shock or 90mm, I wouldn’t have thought that 10mm would make that much difference would it? |
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