Hi Guys,
I'm a new owner of a used 2006, IS 250, and quote excited about it. I also have a GS 400 but I'm just amazed at the stark differences between the cars in term of road noise. The GS is obliviously smooth and quite but the IS 250, seems to roar on the road, since the car is not new , i really have no idea as to how the car was to feel and drive , so any comments would be appreciated.
I think it might be bcos the IS is a small sports sedan but could be wrong

 

No, it's not the car, it's the tires. Get some good new tires and it will be quiet.

 

Wow really , thanks any recommendation

 

it could also be caused from bad wheel bearings.

 

It depends what your budget is.

Yes, it could be bad wheel bearings, but I highly doubt it. A simple way to check is to jack up the car and shake the wheels. If they clunk, the wheel bearings are bad.But, I highly doubt this is the case. Almost every time I hear about road noise complaints on a toyota or lexus, it's the tires.

go to tires-easy.com and discount tire will match their price.

 

Exactly what tires are on your 250 now?

 

Kuhmo Ecsta ASX, but when I bought them, they were less than $100/tire. It's wayyyyyyy more expensive now. Next tires I would buy would be Nexen CP672's, just to try them out. They're a great price, and are supposed to last a long time.

 

Michelin Pilot Sports!!

 

make sure your tires are not overinflated

 

Definitely need better tire

 

I have the potenza RE050 on them now, they are worn but definitely could do with new ones . Sears technicians advices that I should get the lower left ball joint replaced too

 

The sears technician probably doesn't know what he's talking about. I wouldn't even take my car to Sears for any sort of work. There's plenty of other reputable places in CA

How much are you looking to spend on tires?

 

I have a GS 430 (2004) and it's quieter than my 2011 IS. I think that the GS is just a smoother car, from the suspension, to the overall weight. I don't think comparing the two is fair.

Tires may be your problem, but in my opinion, make sure the car isn't just different from what you're used to.

 

Really? That's interesting, never would have thought a V8 GS430 would be quieter than a V6 ISx50 to someone.

Though - riding in my buddies GS400, it is pretty quiet for its age still!

 

are you serious about this post? how can you compare a sport luxury vs a grand sedan which is obviously ment for more comfort.

i am amazing on the first few response here on how to proceed on handling this situation buy new tires.. that would be mainly the last thing you would do as it is the most costly ,

lets all start out with the simple things and being cost effective here

1. yes check air pressure on tires , some tires make more road noise on less or more air pressure.

2. Besides visually checking yourself, go to a reputable mechanic or, ask someone that is mechanically incline about your tires, tire pressure, the wear, if they are directional and so on.

3, If a mechanic is suggesting for you to replace a damage part on your car, and if it is relating to anyhting you are there for for example road noise.. .. then you can conclude if you should do it or not, and
4 if everything is mechanically sound as of, all the above has been checked.. most of the time getting these simple things are pretty much free , then go ahead and start looking for replacement of tires