ManXP

2007 RX 350 with air suspension (about 45.000 miles).

No matter the speed, I hear some squeak (sounds like rubber is squeaking very badly) comes from suspension. The car was brought to the dealer for 2 times and they told me the suspension is in perfect state (they just replaced one minor part).

I searched the forum, and found the only similar problem (it was with RX330, I think). It was related to bushings (the guy was advised to lube them and problem gone). Maybe someone has any more ideas? I think dealer guys would suggest me to lube the bushings in case they were faulty. Or may they be that ignorant?

kiwi

Front or Rear??

lubing is the best option to start with. and to lube the sway bar bushings properly, you will need to remove them and apply thick silicone lubricant. spraying something from a can wont do it.

i doubt it is air suspension related.

ManXP

I believe both front and rear. I don't think it's air suspension too, I just posted this info to be as detailed as possible.

Any idea how long it may take to remove and apply some lubricant?

kiwi

if you are handy, you could do it yourself.

otherwise, i would suspect a shop would charge 1 hour or less for the front, and same for the rear.

i would also question the dealer, or at least the mechanic who worked on your car. there is no reason why they cannot pinpoint the problem.

if it still squeaks after the sway bar bushings, it might be the links. those cannot be greased, just replaced.

the key is diagnosis by a competent mechanic. second opinion might be in order.

ManXP

Will get the car inspected by another service I trust...