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Old Jan 20, 2020 | 02:41 AM
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Question LX570 Suspension

Question friends, is the LX570 equipped with:

1.) air suspension?

2.) Is this different from hydraulic suspension?

3.) if air suspension, how is it so far to those who are equipped with air suspension in terms of reliability?

thanks

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Old Jan 20, 2020 | 04:47 AM
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I'm fairly new to the LX, not necessarily Lexus, but I'm sure they mostly, if not all, use a hydraulic suspension.
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Old Jan 20, 2020 | 01:25 PM
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It is Hydraulic, not air. There have been very few failures of the system that I am aware of other than the shocks needing replaced at some point due to leaking. Usually well over 100K miles. It is a robust and intelligent system that works well for what it is supposed to do.
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Old Jan 20, 2020 | 02:43 PM
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Originally Posted by SL%%
Question friends, is the LX570 equipped with:

1.) air suspension?

2.) Is this different from hydraulic suspension?

3.) if air suspension, how is it so far to those who are equipped with air suspension in terms of reliability?

thanks
We haven't done our homework...have we?


Originally Posted by Ratchey
It is Hydraulic, not air. There have been very few failures of the system that I am aware of other than the shocks needing replaced at some point due to leaking. Usually well over 100K miles. It is a robust and intelligent system that works well for what it is supposed to do.
The AHC (Automatic Height Control) system is very reliable, as it should be in a Toyota product. All you need to worry about is changing the AHC fluid every 60K miles. That takes all of 30 minutes, and fluid is available at your Toyota or Lexus dealer. Shocks are always a wear and tear item so expect replacement, the same as you would for air assisted or no assist suspension.

Air suspension, as used on Land Rover and other vehicles, is generally a nightmare in reliability.

Last edited by hankinid; Jan 20, 2020 at 06:28 PM.
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Old Jan 20, 2020 | 10:00 PM
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Originally Posted by hankinid
We haven't done our homework...have we?
hahahaha thaks friend.. don't really understand the terminology at times and gets confused



Originally Posted by hankinid
The AHC (Automatic Height Control) system is very reliable, as it should be in a Toyota product. All you need to worry about is changing the AHC fluid every 60K miles. That takes all of 30 minutes, and fluid is available at your Toyota or Lexus dealer. Shocks are always a wear and tear item so expect replacement, the same as you would for air assisted or no assist suspension.

Air suspension, as used on Land Rover and other vehicles, is generally a nightmare in reliability.
sounds good for me...
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Old Jan 20, 2020 | 11:55 PM
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On our previous gen 2000 LX470, no problems with the hydraulic AHC system when we traded it in back in 2013 with some 280K+ miles on the odo. We adhered to the routine maintenance schedule and no problems.


Originally Posted by Ratchey
It is Hydraulic, not air. There have been very few failures of the system that I am aware of other than the shocks needing replaced at some point due to leaking. Usually well over 100K miles. It is a robust and intelligent system that works well for what it is supposed to do.
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Old Jan 21, 2020 | 04:02 PM
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Originally Posted by hankinid
We haven't done our homework...have we?



The AHC (Automatic Height Control) system is very reliable, as it should be in a Toyota product. All you need to worry about is changing the AHC fluid every 60K miles. That takes all of 30 minutes, and fluid is available at your Toyota or Lexus dealer. Shocks are always a wear and tear item so expect replacement, the same as you would for air assisted or no assist suspension.

Air suspension, as used on Land Rover and other vehicles, is generally a nightmare in reliability.
I was wondering if the AHC actually raises the chasis and or frame to improve on the ground clearance and approach angle, breakover angle, and departure angle as well as the ground clearance or if it only raises the LX body ? In other words does the AHC actually improve ground clearance and approach and departure angles for off roading.
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Old Jan 21, 2020 | 04:36 PM
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Originally Posted by Ftcgsf
I was wondering if the AHC actually raises the chasis and or frame to improve on the ground clearance and approach angle, breakover angle, and departure angle as well as the ground clearance or if it only raises the LX body ? In other words does the AHC actually improve ground clearance and approach and departure angles for off roading.
The AHC pushes fluid into the shocks to raise the chassis and drains the fluid to lower it. It is designed specifically to give you better ground clearance when off-roading (It will automatically raise it to hi when in 4low and it detects bumpy terrain) as well as lower it when driving at speed for better aerodynamics and lower it when parking to provide easier ingress-egress.
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Old Jan 21, 2020 | 04:48 PM
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Originally Posted by Ratchey
The AHC pushes fluid into the shocks to raise the chassis and drains the fluid to lower it. It is designed specifically to give you better ground clearance when off-roading (It will automatically raise it to hi when in 4low and it detects bumpy terrain) as well as lower it when driving at speed for better aerodynamics and lower it when parking to provide easier ingress-egress.
Thank you ! So what you are saying is the 2 inches you gain when the AHC is engaged actually gives you 2 more inches of ground clearance, and better approach and departure angles ? Not just lowering and raising the " shell/body" of the LX.
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Old Jan 21, 2020 | 04:55 PM
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Originally Posted by Ftcgsf
Thank you ! So what you are saying is the 2 inches you gain when the AHC is engaged actually gives you 2 more inches of ground clearance, and better approach and departure angles ? Not just lowering and raising the " shell/body" of the LX.
It probably closer to 4 inches total (maybe more) between the lowest and highest setting. And no, it is not adjusting the body/shell of the vehicle. There would be no advantage to that. You can actually raise the vehicle 1.25" just by adjusting the AHC sensors (and adding spacers to reset the pressure) for a full time lift and still have your adjustability.
(keep in mind that if for some weird reason it did just raise the body/shell, you would probably have better approach/departure angles, but not better break-over or ground clearance - but that is not how this system works)
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Old Jan 21, 2020 | 05:21 PM
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Originally Posted by SL%%
Question friends, is the LX570 equipped with:
1.) air suspension?
2.) Is this different from hydraulic suspension?
3.) if air suspension, how is it so far to those who are equipped with air suspension in terms of reliability?
thanks
Air
Much different
N/A for Toyota...talk w/ those who drive Rover or MBA.

Originally Posted by SL%%
hahahaha thaks friend.. don't really understand the terminology at times and gets confused
I'd suggest checking the 200 series FAQ section on ih8mud.com.
sounds good for me...



Originally Posted by Ftcgsf
I was wondering if the AHC actually raises the chasis and or frame to improve on the ground clearance and approach angle, breakover angle, and departure angle as well as the ground clearance or if it only raises the LX body ? In other words does the AHC actually improve ground clearance and approach and departure angles for off roading.
Asked and answered I'd say.


Originally Posted by Ftcgsf
Thank you ! So what you are saying is the 2 inches you gain when the AHC is engaged actually gives you 2 more inches of ground clearance, and better approach and departure angles ? Not just lowering and raising the " shell/body" of the LX.
See above, as well as check the link above.
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