What is suspension fluid AHC?
Application Notes. RAVENOL AHC Active Height Control Fluid is used in vehicles from Toyota, Lexus, Nissan and Infiniti that are equipped with an active height control system. This system was designed not only to change the position of the suspension system, but also to give the car a special softness.
What is AHC on a Lexus?
4-Wheel AHC adjusts the vehicle height in accordance with driving conditions. HI (high mode): For driving bumpy roads N (normal mode): For ordinary driving LO (low mode): For easy access to the vehicle Press the “OFF” switch to cancel. ■Easy access mode. Press this switch for easy access and easy loading of the vehicle …
What year lx470 is best?
If you’re shopping for a used one, the best years to look at are 2003 and up. During the ’03 model year, the LX switched from a four-speed automatic transmission to the five-speed, while picking up front-seat side airbags and first- and second-row side curtain airbags.
Is Lexus lx470 reliable?
The most reliable and best in its class 4-wheel drive vehicle on the market. This Lexus is the best vehicle Ive ever owned. The Power, Comfort, Styling, Reliability and Performance is Superb and unmatched . Rating breakdown (out of 5):
How do you bleed AHC suspension?
I found the (4) bleed valves on the ahc units that are attached to the frame. Put the car in low mode. siphon out the reservoir under the hood. put a jack under the frame on one corner, attach clear line to bleed valve leading to bucket, open bleed valve, lower jack slowly to get all fluid out.
How does Lexus AHC work?
For example, when the vehicle stops, the chassis lowers two full inches for easier loading and unloading; at highway speeds it automatically lowers one inch in the front and one half-inch in the rear; and when the vehicle’s four-wheel drive system is shifted into the low range, the X-AHC raises the vehicle three inches …
How does the suspension work on a LX470?
This shock design is unique to the LX470’s height control system: the vehicle pumps pressurized fluid into and out of the shock to raise or lower the vehicle. Because the shock had broken off (luckily not damaging a nearby brake line or tire), all of the height control fluid had bled out and the car’s entire front suspension collapsed.
Is the LX570 AHC the most advanced suspension?
Conclusion, examining separate suspension components when installed is difficult on any car, not to mention the AHC, which is probably—without exaggeration—the most advanced suspension setup in any passenger-oriented production vehicle. You can’t just “take out” an “accumulator globe” from your LX to see if it’s “alright” and then plop it back in.
Do you need to bleed hydraulic fluid for LX570 AHC?
To do that, you’d need to bleed the hydraulic fluid and be VERY careful when disconnecting rusted/weathered/corroded/dirt-fused connectors. For me, the risk of potentially screwing up an apparently well-balanced setup was not worth it.
What are junction spots on Toyota LX570 AHC?
Below is a schematic that shows fluid leak weak spots or “junction spots” — whatever you want to call it, but areas that Toyota mechanics identified on a schematic, so probably a good starting point for visual inspection purposes.