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Old 10-16-2010, 08:45 AM
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How about reliability of QL(air suspension)

Since we can order QL for Laredo X, I'd like to know its reliability. Sometimes more technology give you more headache. Any inputs?
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Old 10-16-2010, 08:49 AM
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Re: How about reliability of QL(air suspension)

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Originally Posted by goforjeep View Post
Since we can order QL for Laredo X, I'd like to know its reliability. Sometimes more technology give you more headache. Any inputs?
+1 to that notion, especially for first edition vehicle. check out the numerous threads on this topic both here and in other sites. also check out the wk2 stickey on this forum for jeep system schematics and description. jeep seems to have a well thought out closed system.

the good news is that air systems have been in use on commercial vehicles for years with heavy duty application. land rover, audi, and vw have been using air systems for 5-10+ years now.
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Old 10-16-2010, 08:55 AM
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Re: How about reliability of QL(air suspension)

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Originally Posted by moosehead View Post
+1 to that notion, especially for first edition vehicle. check out the numerous threads on this topic both here and in other sites. also check out the wk2 stickey on this forum for jeep system schematics and description. jeep seems to have a well thought out closed system.

the good news is that air systems have been in use on commercial vehicles for years with heavy duty application. land rover, audi, and vw have been using air systems for 5-10+ years now.
Oh, I just found there is a subforum overhead for suspension things,
Thanks
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Old 10-16-2010, 09:05 AM
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Re: How about reliability of QL(air suspension)

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Originally Posted by goforjeep View Post
Oh, I just found there is a subforum overhead for suspension things,
Thanks
No worries gfj, it's a hot topic for all of us. It's a cool system if it's solid and working properly.

Many have suggested getting the extended warantee to deal with potential first year QL exposure. Some are foregoing having the QL altogether, especially if you may want to mod or lift the suspension for AT. Having the option to choose is a nice benefit for the Laredo.
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Old 10-16-2010, 10:41 AM
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Re: How about reliability of QL(air suspension)

So far, so good, with mine at least. Expectation is that the sealed system in the WK2 will last longer than other systems. Still, I don't expect it to be any less problematic than a traditional suspension. The difference is that when you blow an air spring, you know it for sure. With a more traditional strut or shock, they still wear out, but it's gradual, so you don't know it. If your vehicle has 100K miles on the shocks or struts, they're worn out and need replacement, whether you know it or not.
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Old 10-16-2010, 10:57 AM
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Re: How about reliability of QL(air suspension)

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So far, so good, with mine at least. Expectation is that the sealed system in the WK2 will last longer than other systems. Still, I don't expect it to be any less problematic than a traditional suspension. The difference is that when you blow an air spring, you know it for sure. With a more traditional strut or shock, they still wear out, but it's gradual, so you don't know it. If your vehicle has 100K miles on the shocks or struts, they're worn out and need replacement, whether you know it or not.
Thanks for the comment, I am curious about the feeling of air suspension ride? both on highway and off-road.
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Old 10-16-2010, 11:16 AM
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Re: How about reliability of QL(air suspension)

I test drove a QL equipped Overland, and I thought it handled nicely in the Auto mode of SelecTerrain. However, I would be one of those that would investigate the extended warranties. We don't know anything about this system in terms of reliability, and can only go from past experiences with similar other systems in the Caddy and Lincoln land yachts, where they have developed replacement systems using convential components. The front of the QL seems to use combined shock/spring component, and what is that going to cost to replace the shocks when they are worn? What will upgrades cost for better shock control units? We don't know!
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Old 10-16-2010, 05:17 PM
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Re: How about reliability of QL(air suspension)

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Originally Posted by goforjeep View Post
Thanks for the comment, I am curious about the feeling of air suspension ride? both on highway and off-road.
Can't vouch for anything rougher than gravel/dirt roads, but on highway or off, it's smooth and solid. You don't feel like you're floating, but neither do you feel every single bump. The damping is excellent.
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Old 10-16-2010, 05:19 PM
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Re: How about reliability of QL(air suspension)

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Originally Posted by Jim Hef View Post
I test drove a QL equipped Overland, and I thought it handled nicely in the Auto mode of SelecTerrain. However, I would be one of those that would investigate the extended warranties. We don't know anything about this system in terms of reliability, and can only go from past experiences with similar other systems in the Caddy and Lincoln land yachts, where they have developed replacement systems using convential components. The front of the QL seems to use combined shock/spring component, and what is that going to cost to replace the shocks when they are worn? What will upgrades cost for better shock control units? We don't know!
I wouldn't be surprised at all for replacement costs to be reasonably high. This isn't a cheap vehicle; the parts specific to the more costly features won't be rock bottom.

But then again, I don't expect to have to replace these things more than maybe once. When I have that many miles on it, I'll be willing to look into a new vehicle if and when the suspension craps out rather expensively.
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Old 10-16-2010, 05:45 PM
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Re: How about reliability of QL(air suspension)

My dealer told me this system is what porsche has been using for a number of years now so it is proven in that sense
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Old 10-16-2010, 09:10 PM
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Re: How about reliability of QL(air suspension)

Another dealer with some ill advised spin:

http://www.panix.com/~clay/cayenne/suspension.html

Possibly he was referring to the VW Toureag's air suspension.
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Old 10-16-2010, 10:11 PM
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Re: How about reliability of QL(air suspension)

Seems attractive to pick AWY including ORA I+ Tow + QL at $2125 for Laredo X 3.6v
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