As it happened with some of you, my height control sensor links (HCSL) have failed. My front right HCSL is about to fall apart, the left one is seized. As far as I know, you can't buy OEM HCSL replacement separately. Links sold with height sensors. There are a number of ways to go around the issue, one of ways is to get used ones ($50+ on Ebay). Get generic end ball joints, however, I couldn't find type suitable for my purposes. One of other options is to repair the links.

I "repaired" the links by compressing end ball joints as depicted below (see compression marks). I used a table vise to compress end ball joint area. It made the joint tight and the links could be used for some time longer. Avoid over compressing to prevent joint binding.



However, later I found a better option - to replace end ball joints with correct parts. After some browsing of Amazon, I found out that ECCPP makes height sensor links for different variations of Lexus RX. ECCPP links have shorter rod but I was interested in end ball joints. So, I assumed that Lexus used same type link mounting and purchased 4 links for $21 each, one is depicted below.



I took apart the new link and compared end ball joints.




To me, ECCPP end ball joints and OEM ones are close enough. So, I used my front link rods and replaced end ball joints with new ones. I will fix rear ones later.



If you decided to go the same route, remember that end ball joints on different ends of the rod use different threads. Also, measure distance between pins before taking your old links apart, otherwise, you might have to calibrate height sensors. I used anti-seize as it took some afford to take old links apart. I hope, somebody will find it as useful as I did.

 

This info is no longer in quantum superposition state, if you know what I mean

 

I don't know what you mean but I like it when you use big words like marmalade etc...

 

When you stated one was falling apart and the other was seized, you're referring to the ball joints? Do you have OEM air suspension?

 

I replaced end ball joints used in height sensor links, not suspension ball joints. I used to have OEM air struts, however, I replaced them with OEM coils. But I kept, height sensors and I want to keep them functional in case if I decide to go back to air struts again.

 

Yes, joints of those arms tend to seize at around 100k. Anfanger shared the pure true gem for LS community. Honestly, that was kind of a trade secret of a select group of techs. No worries, it's easier if clients bring their own links - saves time ordering and ordering more off aliex.