RRKiller

Hi Peter, thanks for your reply! The C1725 are mounted correctly. I was very precise with that. How many times do they twist do you think when the sport mode is active? I talked to an air strut specialist and he thinks its maximum half of a turn and not more... I did some research on that because the car is harsh and that could be because of the dampening and I thought the problem could be over there.... Ill check the arms asap! Since the fist day I own this car I see strange behaviour. When I come home and I let the car idle for a few seconds the car lift itself on the driver side and lower itself on the passenger side (front and rear). I unbolted the rear sensors (which are both tuned in the mostly down position) and bolted them back onto the car on the very exact spot and now my car is raised on both sides in the rear for a minimum of 5mm. And exactly the same on both sides... I absolutely mounted those sensors back at exact the same point on the car. Since I have coated parts in black I can see the exact stamp where they use to be.

Thats not correct. You should use WS for the 6 gear models...

I accidentely deleted the fault the first time and it never came back. With the IT2 tester I cant check the history of faults... I was hoping with deleting the fault the car would drive perfect again.... Most stupid mistake I could make.... Anyway. Those other errors came back with the valve... I just dont know what exact valve because there are 2 of them... I have techstream on a disk. I am going to try to hook up my laptop and test it myself.

The problem was already there before I changed the struts 😞 I like the saying though! I was planning to buy an 460 2007 next to the 430 but after reading about brake actuators failing, steering racks (5000+ euro) failing, and suspension bushings failing I got scarred. There are even stories about dangerous driving situations with braking and steering and thats scares me even more.

Can you please tell me more about the leaking from the pastic housing? I may have the same part broken but I am not sure.

I think I have bought that radiator. Mine has the connection on the other side. I need to make the tube a bit longer. My Lexus has the seperate expension tank. In the US they dont have that but thats no problem. The only difference is that little hose and there is also an extra filler cap on my radiator since the models in the us dont have that expension tank where the normal filler cap is located.

Hey guys, I am really happy with my LS430 but there is a really big problem what keeps me from driving the car for more then 6 months now. When I start the car, the first few meters or sometimes hundreds of meters its driving fine but then the comfort is gone and its driving horribly harsh. The car lift itself 1.5 cm all around as well. When I shut the car off it resets itself and mostly it will drive fine again the first few meters. I have bought 4 new original air struts at the dealer (5000+ euro). I am sure the problem isnt in there. I also took the little arm of the hight sensors and I twisted them all up and down and I saw in my IT2 tester that the value went up and down like they suppose to do. There are no errors or DTC's. The only thing I found was one "C1752 continuous current to exhaust solenoid" and C1725 Damping force control actuator FR. I must confess that I got those errors after changing the front air struts so I am not sure if this has anything to do with it. The only part I havent checked is that exhaust solenoid. I have found out that there are 2 of them. One under the car near the differential for the rear wheels and one for the front wheels and its located near the compressor at the front right wheel. Since they are 500 euro's each I really dont want to change them just by guessing. Its just to expensive to play around with such numbers and I am not even sure if this will solve the problem. I really hope someone over here can help me out since I have a deadline soon and I really need that car. Thanks in advance for your help and thoughts on this.

Ok and what do you mean with better? More comfort? Better handling? More stiffness? I am always in pursuit of comfort.

Thanks for all your comments and information gentlemen. This is all very helpful. And @lex - eleven Showing a picture is always interesting to look at. Even for some idea's how to mount the cooler if I will purchase one. Would you like to share what you have paid for your new radiators?

I'm really curious about the comfort and handling comparing to the originals. A wile ago I did some research and these aftermarkets were only available for the fronts and not for the rear but you seem to have a complete set. I went for the original ones and payed about 1200 euro's each and decided to fix the other side as well for equal damping quality's... Quite expensieve but its such an important part.....

Hello Lexus friends, I'm new here and I'll make a proper introduction later on because I am full of love with the very best brand in the world. I have read many topics on the tranny cooler problem design flaw but I still have some questions and I cant find the answer. Hoping you gentlemen could help me out. - Can I get rid of the (future) problem by just mounting a good quality trannycooler like Mocal or another brand? - If I mount this, do I use the original lines onto the new cooler or is it smarter to get rid of all the lines and renew everything. Every unesseserely connection is a future risk in my opinion. - Can somebody please show me with a picture what lines I should use to mount on the future tranny cooler. - Somewhere on this forum I found someone saying that the original cooler is located into the radiator itself. Do I need to shut off those insert lines into the radiator? - Do I really need to mount a new radiator when I also mounted a new tranny cooler or can I be sure with just a tranny cooler? I want everything to be 100% safe for the future and I think Ill keep this car forever. - What size cooler would be the best? - Is it smart to take a thermostatic cooler? - Do I directly need to fill up the transmission fluid and how can I do that? Or should I fill up the cooler before mounting everything together? Sounds attractive but it's not really precise. Another problem is that there is no dipstick with these type of transmissions.... Very scary. - Mounting this cooler; Solid or in rubbers? - Is it correct that the size of the ports should be for 10mm hoses? After almost 2 years of thinking and googling I thought I should go for it now so thats the reason of this topic. Many thanks for your help and info!

Hello Lexus friends, I'm new here and I'll make a proper introduction later on because I am full of love with the very best brand in the world. I have read many topics on the tranny cooler problem design flaw but I still have some questions and I cant find the answer. Hoping you gentlemen could help me out. - Can I get rid of the (future) problem by just mounting a good quality trannycooler like Mocal or another brand? - If I mount this, do I use the original lines onto the new cooler or is it smarter to get rid of all the lines and renew everything. Every unesseserely connection is a future risk in my opinion. - Can somebody please show me with a picture what lines I should use to mount on the future tranny cooler. - Somewhere on this forum I found someone saying that the original cooler is located into the radiator itself. Do I need to shut off those insert lines into the radiator? - Do I really need to mount a new radiator when I also mounted a new tranny cooler or can I be sure with just a tranny cooler? I want everything to be 100% safe for the future and I think Ill keep this car forever. - What size cooler would be the best? - Is it smart to take a thermostatic cooler? - Do I directly need to fill up the transmission fluid and how can I do that? Or should I fill up the cooler before mounting everything together? Sounds attractive but it's not really precise. Another problem is that there is no dipstick with these type of transmissions.... Very scary. - Mounting this cooler; Solid or in rubbers? - Is it correct that the size of the ports should be for 10mm hoses? After almost 2 years of thinking and googling I thought I should go for it now so thats the reason of this topic. Many thanks for your help and info!