digger11

Both front doors on my 08 build RX400H creak really badly - even on relatively smooth roads.

If I open the door ajar whilst driving the seals are silent - so I am 100% sure the problem is noisy seals.
I have tried Silicone Spray, WD40 and even cleaning the seals with Methylated Spirits - but the problem remains.

It makes the Lexus feel like a cheap Korean built car.

Anyone solved this problem ?

mandyfig

Try wiping the seals with AS303 protectant, I heard it solved the issue.

Are you sure it is not the leather seats? Some found out the creep was coming form the leather seats and after applying leather moisturizers, they were gone.

digger11

I have ordered some gummi fledge based on googling the problem, but it appeaars to be more of a bmw problem than Lexus.
Is definitely creaking from the doors as when I open them onto the first
latch the sound stops immediately.

jfelbab

Might it be from where the leather/vinyl door panels touch each other with the door closed? The rubber (neoprene) seals seldom make noise and you have already tried applying silicone to them to no avail. I would try treating the door panels.

If you are positive the squeak is coming from the door seals, clean them with an APC and rub them lightly with talc.