I have a similar noise , six months after a small front end crash.
The insurers repaired all, but accused me of lying, and said the noise must have been there before the crash.
Yeh, so why did I not get it checked out under warranty then
Any way, after the threat of a solicitor, eventually they agreed to let Lexus look at it.
First visit - a new alternator - £640 ok i'm not paying - noise still there within 100 yards of collection.
Second vist - no answers - may the cat
Third vist - the cat goes on ()after the threat of the solicitor) £ 800 or so.
Guess what its still there - within the same bloody 100 yards to the roundabout.
Now no one wants to know.
I get Toyota Corp Japan involved - eventually Lexus GB call, and back it goes, at Lexus dealer cost " labour at least.
Now, the only mechanic they now have, as they left in Decemeber, finds that its a noise he thinks in the heater matrix. Prooved by clamping off the feeder pipe.
A long story and its still on going - as I am trying to get the insurer to pay for it.
Basically the noise is like a ssshhhh ing noise near your feet. It starts at about 4200rpm all the way up , any gear and neutral.
I still do not know for sure what the noise is as I have lost all confidence in the dealer.
If anyone as any ideas - they would be welcome.
