Do you get a warning light or failure message from disconnecting the air suspension?

BTW, my range rover classic (one of the first vehicles with air suspension to my knowledge having been introduced by land rover in 1993) has been happily riding on coil springs for over a decade.

 

AFAIK, part of the steel springs kit is some spoofing software to fool the system into thinking the air springs are still there. I may be wrong, though, and its a simple matter of removing the ASM.

 

AFAIK when you disconnect the Air Suspension Module (all plugs removed) then that's it, no warning lights.

 

True statement!

 

i unplugged my asm and i still have the "cats" warning light come on. do i need to do a hard reset to get rid of the code? i cant hear my compressor come on anymore since i unplugged the unit behind the back seat. I used to hear a hiss when i still had everything hooked up after my coilover conversion.

 

It sounds like you followed the instructions for dis-connecting the computer found in the manual: http://www.arnottindustries.com/file...694&Size=SMALL

Go ahead and disconnect the battery and leave it unplugged for 1/2 hour. If that doesn't fix it call Marvin here in Arnott's Tech Support Department at 800-251-8993.

 

Hi, Can you tell me how the new Coilovers work for you? Most of the postings are several years old. I know Arnott has re-engineered their coilovers. I basically drive my car only on long trips on the highway. Do you have any loss of comfort with the coilovers vs. the original air suspension. My 2007 Vanden Plas has also had a lot of front suspension issues with the stock Jag air. I understand the car will dip in the front a little upon braking hard and raise in the front during hard acceleration.


Any help will be appreciated.

 

I find the ride comfort in a straight line the same as my sports shocks for the XJR. I do find that the handling around fast corners a bit more vague and I think it's because of the loss of the CATS capability. I don't notice anything significant for braking or acceleration. I changed my set as I just couldn't put up with the frequent error messages and the constant uncertainty of whether or not a leak would occur.

For an 07 car, you would need the Arnott's set due to the need for their electronic module that eliminates the error messages after the conversion. The earlier cars don't have this problem.

 

Regarding driver-activated headlight auto-adjustment, does the headlight system in the 1973 Citröen DS21 count? Headlights would automatically re-adjust themselves vertically when the driver selected a different ride height. And, when cornering with the high beams on, the driver's turning the steering wheel caused the high beams to swivel left or right, illuminating the part of the road the car is steering toward. And the whole system was mechanical!

 

Hi John,

This thread on air suspension coil spring conversion has had no activity for over four years - is this the thread you intended to reply to?

BTW, Don't forget the "Cyclops" center headlamp on the 1948 Tucker that aimed left and right as the steering wheel was turned.

Also, some very good friends of mine are Mulvihills - there aren't a lot of you around so you're probably related.

Cheers,

Don

 

I have just did that. only the front. and I'm happy with it.
now I need to figure how to connect the module that came with those struts to defuse the cats messages.
any idea?

 

Take note of what Don B posted, just above.

Do a google search for more-recent / more active threads. There are many.

Also videos, Arnott-produced and not-only.

Arnott's approach has changed over the years. More than once.

Arnott goods mean Arnott should be the first place you ask, really.

Not as if they've never dealt with this. More than once.

 

Did you intentionally structure this as a poem?

 

Not I.

My kid Brother is the published poet.

Been know to do a mean address to a Haggis, though...

... blame it on the Speysides as reward.. Scapa.. Old Pulteney.. .

 

Seriously? Did the instruction sheet that came with the struts not give you that?

 

hey, actually I got the Unity 31-111700 Coil Spring Conversions Kit Front only. they supply the module, but no instruction. today I found the way to do it. the whole 9 yard of it.... take off the back seat etc. so I'll wait for the right mood to start this project. in the mean time, the car is flying just Great!

 

Well dang... NOW you 'fess up?

I bought a cheaper MaxPeedingRods set of FOUR Chynee coilovers . $289 + tax for all 4, IIRC? But .. only as temporary 'fallback" if my OEM Bilsteins really ARE toast. Didn't even have to translate from Chinese. Foxy buggers sent multilingual instructions. No module required, my Model Year if doing all four corners. Just de-power the OEM box that rats-out a fault so it can no longer do so..

...but I weren't so cornfused as to ask about ARNOTT advice for a product not even the same race, tribe, religion, nor political DNA.

Mayhap your ARE "the reason.." [@ wfooshee .. and not-only - is] "...so far above average"?

 

I'm trying to think through how the Air Suspension Control Module is going to continue to manage your rear air springs with the front air springs deleted. Typically, if the ASM detects a serious fault in the system, it will disable compressor operation to prevent it from running excessively.

Does Unity claim their module will fool the ASM so it continues to operate the rears?

Don

 

So you have springs on the front and the old air springs on the back?
That must be a mess to drive?
.
.
.

 

Still hoping to salvage the OEM Bilsteins, if so, not much to contribute, as that's the way they were built, 'stock'.

If not readily restorable, I'll see if coverage on the MaxPeedingRods coil-overs is of use.

But no, from those who've posted over the past many years it isn't, really, a "bad thing"' to keep rear air struts, as it retains load-leveling.

Load-leveling is an independent feature in its own right - found on luxury cars for easily 75 years, already. Not to mention passenger coaches.. and trucks, trailers, and RV's.

Given the height-sensors are still there, it's more the missing modulated shock absorbers that want some form of "lie" crafted to feed the "con puta" box.