LX570 AHC “Basics” - Added as sticky thread for AHC Issues (1 Viewer)

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Where are you all buying your fluid from? I need to do mine at 90k
@Emcd try your local dealer, part number is in both photos!

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awesome, i'll call and get some today. I'll report back on the $/Qt cost
 
My Toyota dealer wants $17.50/liter. $44 for 2.5 liter container.
 
Has anyone been able to complete a Height Offset using Techstream (using a cheap cable running 2.x firmware and 13.x techstream)? I've run into a problem where when I select the AHC Data List button it begins to load the module and then crashes the program.
 
Has anyone been able to complete a Height Offset using Techstream (using a cheap cable running 2.x firmware and 13.x techstream)? I've run into a problem where when I select the AHC Data List button it begins to load the module and then crashes the program.

My setup is a little bit older than yours (9.x Techstream and 1.4 firmware on the cable) and I was able to do the adjustment procedure.
 
My setup is a little bit older than yours (9.x Techstream and 1.4 firmware on the cable) and I was able to do the adjustment procedure.

You changed the height offset value in Techstream?
 
So my setup was on a Win 10 64 bit machine. Forgot I had packed away last year an old 32 bit machine running XP on which I had installed Techstream 12.x.

So after digging it out, I hooked it up and it can read the Data Lists without Techstream crashing (with both my 1.4 and 2.0.4 firmware cables), so I'm assuming there's an issue with the driver or something for the 64 bit version on Win 10.

Tomorrow I'm going to try and adjust the Height Offset to level out the lean between the FL and FR sides.
 
You changed the height offset value in Techstream?

Yes, I was able to do the full height offset adjustment procedure.

So my setup was on a Win 10 64 bit machine. Forgot I had packed away last year an old 32 bit machine running XP on which I had installed Techstream 12.x.

So after digging it out, I hooked it up and it can read the Data Lists without Techstream crashing (with both my 1.4 and 2.0.4 firmware cables), so I'm assuming there's an issue with the driver or something for the 64 bit version on Win 10.

Tomorrow I'm going to try and adjust the Height Offset to level out the lean between the FL and FR sides.

On the 100 forum @getco created a virtual machine which lets you run Techstream regardless of the operating system on your computer. He made it almost painless to use with whatever computer you prefer. Works great on my Mac.
 
On the 100 forum @getco created a virtual machine which lets you run Techstream regardless of the operating system on your computer. He made it almost painless to use with whatever computer you prefer. Works great on my Mac.

Thanks. I had tried that VM version a month or 2 ago but had some issues connecting to to my vehicle or the VIM, can't remember.
 
Yes, I was able to do the full height offset adjustment procedure.

What settings did you use and what were the results? Did you perform the sensor lift as well?
 
After flushing the AHC reservoir tank and replacing with new fluid 2 weeks ago I went ahead flushed the entire system this weekend and this is what I got out. For anybody on the fence about just replacing the fluid in the tank only without bleeding all four corners these photos should help make your mind up! Not only does it ride significantly better but the time it takes to fully raise and lower from full high to full low and back has drastically improved.

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What size tubing did you use on the bleed nipple @Darb ?
I have fluid and a syringe and pump, getting ready to do this and then an ahc level.
 
I have the old school hand pump manual version of that. I’ll throw a mic on a nipple tomorrow and post that up. I assume it is standard brake size . . . But want to be sure just in case.
 
I called two lexus different dealerships in my area for the ahc fluid flush. One quoted $330 and another $130. I asked both (SA) if they flush at all four tires and reservoir. Both said yes. Has anyone else completed this service at dealership and what was the cost?
 
Most Lexus dealerships are charging $130 per labor hour and higher for work. The fluid alone is around $100, and there is absolutely no way the tech will charge less than 1 hour of labor to perform a real complete flush of the system. The $330 quote sounds pretty spot on in my opinion. Don’t forget you will pay a minimum of $25 in shop supplies as well as sales tax on top of that. The stealership gets over $100 for an engine oil change, so you know $130 for AHC fluid change/flush is basically impossible!
 

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