I've had my 2010 LX 570 for a couple of years. The ride was not always that great but it got progressively worse.

I finally decided to replace the accumulators. All look original with 3 with 0 diaphragm resistance. The pencil test goes all the way about 6 inches.

It's interesting to read the service history on this car.

When the suspension started acting up (my problem exactly) with the previous owner in 2020, he took the car to the Lexus in Tampa and instead of replacing these shot accumulators, they replaced the shocks. And then again in 2023. 16 years of history show no replacement of the accumulators. The previous owner finally dumped the car roughly a year later at a steep discount and now I feel bad for the guy, thinking that the solution might have been simpler

Anyway, I drained the system and replaced the globes and now the car won't lift. It has the C1763 error. I've tried several recommended solutions such as bleeding all sides etc. I also read that I need to bleed the HCA unit but I can't find it.

Anyway, I disconnected the battery overnight. Hoping that someone could give me some pointers. If I need to bleed the HCA unit, where is it? If that has nothing to do with it, how do I wake up the pump? It's also incredibly stupid of Lexus to put the reservoir where it is. There's no way to check the level. I topped it off with the car on low and it won't lift.

Hopefully you all can give me some help.

Thanks.

 

I would pose this question on the ih8mud 200 series section dedicated to globe replacement. Way more experienced DIYers then here.

 

Disconnecting the battery did the trick.

I didn't realize each globe goes in a specific corner. The car drives like new, should I reinstall correctly? I tend to think not...

 

This is from another thread

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"MUV: spherical accumulator with rubber-resin layered diaphragm." This is from the site ekkeagle.com, which also says "The MUV series incorporates a plastic laminated diaphragm produced by polymer materials..."
EKK Eagle is a Japanese company making such globes.

The -400 corresponds to the capacity of the front globes. The rear ones would then be -500.
The 200 corresponds roughly to the nominal pressure in bars (226 bar for the fronts) but is more likely just the model series.
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Yet, in another thread they say that the H at the end of the number indicates high and low pressure. I checked mine and they're all -400 H. That must explain the unbelievable ride I'm getting right now Did I just get a great idea on "all fours"?

 

How do I navigate to ih8mud 200 series? New to forum and cannot figure it out.

 

theres different part numbers for front and rear accumulators but not specific corners