Hello,
I am looking for help with the issue I have after rear air springs were replaced.
After a few months of very uncomfortable ride with clicking noise in the rear of my LR3, I have decided to go ahead and replace the rear air spring with new from Arnott. I have replaced front air springs 2 years ago with Anotts, and I am very happy.
I have picked my car from my mechanic and took it for the ride and felt disappointed. The rear suspension was/is very hard to the point that when hitting the pathhole it bangs very loud. When parked, I have tested my LR3 to see if suspension is rising up and down. The car sits at the standard height almost even (front and rear) but rear can be noticed sitting higher (I have noticed it after a while). When lifting the car, the car lifts and sits OK. When bringing the car down to standard height and then to access height, the car lowers down, sits for around 30 seconds and on the dashboard I get the message "SUSPENSION IN EXTENDED MODE" and next message says "RESET SUSPENSION HEIGHT IF CLEAR OF OBSTACLE" then car lifts up automatically to the standard mode and I get the dashboard displaying icon that car sits in "Extended mode". Then to clear the "Extended mode" icon, I push the lever UP (the car does not adjust). Then the car is at its standard height.
I called Arnott, and they told me to use scanner to reset air suspension to default or perform calibration. My mechanic tried to reset air suspension to default, but it did not help. I have done Hard Reset, thinking there must be something in the memory and hard reset can reset it all. The other day I left my car with mechanic for another try with another scanner he had to reset air suspension and he could not fix it and he thinks the fault lays on the Arnott Air Springs becasue they are after market product.
From many hours of research I have done, I decided I will take my LR3 to Land Rover Dealer because they have the specialized scanner that should do the job and reset the air suspension. There are no codes, and they could not figure out whats wrong. After 4 days at Land Rover dealer, I drive off with unresolved issue. I am very flustraded and upset that Land Rover dealer could not fix my issue.
I am not sure what's next. Any tips and help will be very appreciated.

1. Message after bringing car down from standard height

2. This message appears after about 30 seconds.

3. This icon show after car automatically lifts up to standard height. To clear the icon, I push the lever up (car does not adjust).

 

Has to be a sensor or calibration issue since the vehicle believes it is in extended mode but i would expect there to be codes stored for this.

 

I will second a sensor issue, but really it sounds more like the air lines were not properly installed and there is an issue with air getting out of the new rear strut/struts. This causes the rear to drop slower than the truck expects and therefore it *thinks* its hung up on something and goes into extended mode. The struts themselves should not be the issue, they are just struts after all. The other possibility is someone messed with the rear valve block, when they should not have....

 

2nd checking your air lines.

also, if you have a GAP tool run through the suspension calibration in case it's a sensor being wonky

 

3x on one of the lines or connection to either strut. It could be a sensor still, but usually if it's a sensor or calibration issue, you get a cross-articulation fault. Also seems like if the lines were put on backwards either LR or the mechanic would have spotted that, unless they look all the same (I really don't know; Dakota would know).

 

Thank you @loanrangie .
It it very possible it could be bad sensor and coincident that it (one of them or both) failed after or during replacement. Whole Air Suspension worked without any issues before rear Air Springs replacement. Front and rear air valve were replaced as well some time ago and there were no leaks.

 

I hope my mechanic did not touch rear valve block as there was no need. Front and rear air valve were replaced some time ago and there were no leaks. @DakotaTravler what do you mean air lines were not properly installed ? Do you mean at the air spring ? Could that be the air lines (tubes) were inserted too deep inside the air springs ?

 

No codes. My mechanic as well LR dealer says no codes. LR dealer says they disconnected the lines and find dryer dust inside the lines and I hope they have clean it at least what they said.

 

@Blackngold77 , I don't own GAP tool. Are you referring to IID Gap tool (
https://www.gap-diagnostic.com/products/iidtool) ?

 

The dust could be blocking the valves in the valve block so it would be worth checking them and the lines.