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Quadra-Lift Task Force!

20K views 38 replies 23 participants last post by  Yakentao 
#1 ·
To all with the Quadra-Lift Suspension. I love it and I hate it. I think we should all put are heads togeather and figure a way to have more control of the suspension.

I use to have an Audi Allroad. With the Vag software one was able to to adjust the settings so the car would sit they way you wanted.

Does anyone know if the dealer has this capability? I looked at the ride height sensors. I think new rods could be made to adjust the ride height. It would be nice if there was some info that explained the ratio between sensor movement and ride height. Or for me, if I could set the suspension to default to sport mode that would take care of it.

Any ideas?

Joel
 
#5 ·
I use to have an Audi Allroad. With the Vag software one was able to to adjust the settings so the car would sit they way you wanted.

Does anyone know if the dealer has this capability? I looked at the ride height sensors. I think new rods could be made to adjust the ride height. It would be nice if there was some info that explained the ratio between sensor movement and ride height. Or for me, if I could set the suspension to default to sport mode that would take care of it.

Any ideas?

Joel
Nice to see another former allroader on this board. I used to leave my allroad on Level 1 for the majority of the time and would love to have the suspension start out in sport mode so I don't have to keep turning it on manually, or even just make the traction control light go away. Although admittedly after owning two allroads and a W8 with check engine light always on for one false alarm or another, I almost don't "see" the lights on the dash if you know what I mean. "Hey, how long has that been on?" ;)
 
#9 ·
I don't think taking the mechanical route and changing the length of height sensors is the way to go. The system is computer controlled so some software genius must be able to figure this thing out.

Personally I'd like to be able to have it default to Sport mode instead of auto, and not turn the traction control thingy off.
 
#10 ·
I like the idea of having the option to set Sport mode as the default.

On a related issue, I took my Quadra-drive II Laredo on a rough dirt road. It was by no means 4x4 territory. I could speeds of up to 60kph. I was disappointed at how easily the rear suspension bottomed out on relatively normal pot-holes. I didn't expect this of a premium 4x4. Is this normal for Quadra-drive?
 
#11 ·
BobT The different 4WD systems don't affect how the suspension works, you could be referring to your Quadra Lift air suspension and yes that is softer than the normal suspension set up with steel springs.
 
#13 ·
Thanks for that. Perhaps I should have let the tired down a bit. With any luck, someone might come out with a stiffening kit for the Quadra-lift.
 
#14 ·
I had a look under the rear and was pleasantly surprised to see a pair of normal looking sock absorbers. I had thought the damping was done by the air suspension. This means it should be relatively simple to stiffen the rear. Unfortunately the front has struts built into the air suspension therefor not so easy. If I continue to have the rear bottoming, I'll have to look into some stiffer after market shocks... or slow down... nah!
 
#16 ·
When you raise the car the ride stiffens by itself, as there is more air pressure in the airbags.

On a side note, the jeep quadra lift system is copied from the Mercedes ML/GL Platform, on the Benz when you put it in sport mode (lower) it stays there when you turn the car off, same in off road 1, I'm sure that there should bea way to program the system to do that
 
#23 ·
With the car raised there is really no more pressure in the air bags just more air. The pressure will increase only if the car is heavier. Raising the car gives more travel at the top but less at the bottom. The problem is that we don't know which height setting gives us the mid point in suspension travel. But in any case, I think the issue is more to do with damping rather suspension travel. Wouldn't it be cool if we could not only dial in the height to suit conditions but also the damping? That might be a few years away yet.
 
#19 ·
As there are so many of us with quadra lift, it would be interesting what would be the implication of creating a 1-2"lift kit, will it be out of drivetrain component range at of road II and if so what parts would we need to swap?
 
#22 ·
Hi Guys,
I've cut and pasted a post I added on our Aussie forum and just wonder if the wider masses have experienced this strange noise?

" I have an intermittent front end noise when stationary that can best be described as a mix between a "moan/creak/letting air out of a balloon slowly/sort of noise when you turn off a high pressure tap/horror film creaky door". I parked up today with the engine running after a spirited drive and it made the noise every minute or so. It's coming from the front and you can feel it significantly vibrate through the steering wheel. It lasts for about 1 to 2 seconds. I think, but can't be totally sure, it coincides with going into sport (lowered suspension) then back to auto before pulling to a stop. Drove home tonight in auto (normal height) without any dramas. It has done this since new (3 weeks) but am only getting a little concerned with it now. Is this normal? The air suspension works perfectly fine, going in and out of "aero" height automatically as it should etc etc..."

My friends Down Under reckon it could possible be a leak to the suspension, but it does operate fine at all heights? Any thoughts?
 
#24 ·
The Discovery 3 and 4 owners have a couple of options for over riding the height settings. The LLAMS system seems to be the best option for them. It seems there is nothing (yet) for the Grand Cherokee. Hopefully...

I would like to be able to hold Offroad 1 and Offroad 2 at higher speeds.

Maybe we can lobby LLAMS to make a system for the Jeep???

Llams PTY LTD

Cheers
Numb Thumbs ;)
 
#25 ·
Hi,

i am searching for a possibility to lower my granny. i have QL on board too.

with my former Q7 it was very easy to get, just a little programming and i was
able to lower the car like sports mode or little lower.
all other functions stayed.

here in germany they offer now a lowering up to 30mm.
looks like that, i love it :
http://www.allrad-pauli.de/typo3temp/pics/624876c20f.jpg
 
#28 ·
You are playing with fire there. Never mind the legality or insurance liability, flying around a tight corner at speed in OR1 or 2 with grippy road tyres could be deadly. Note also that in OR2 there is very little extension left in the shocks so they bottom out easily over the slightest bumps stuffing what little handling you have left. Try driving fast in OR2 over a dirt road and you will hear the shocks bottoming like someone hitting you wheels with a sledge hammer.
 
#29 ·
interesting info bobt but please show me where the shockers are fitted on a quadralift?
im sure anyone wanting to over ride have there reasons and would drive accordingly. i mean why modify something if you dont understand its limits of use.
 
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