thanks for your replies.
I had to go to the dealer anyway. One week before the warranty was out I jacked the car and checked the bottom (I was just curious if everything is fine). And I found leaking turbo...!
So I booked to the dealer two days before the end of warranty. Later the service guy called me and said: turbo has to be replaced.*
So did they. It took 3 days, I had RX350. Can't complain about the service at all.
He told me, that they have never had any problem with turbos. New turbo costs 2300 euros without VAT...so quite a lot. + 7 hours of work.
So diesel friends, I recommend to check it. When you will be at the bottom of the car, you have to remove small cover (where is the oil filter) - through this I took the pics.
* do you know the risks when the turbo leaks?
There are two options:
1. The rotor axe starts to move in the bearings, so the bearings start to fall apart. Remember that the bearings are constantly cooled and lubricated by engine oil. In one point the bearing crashes, which causes that the turbo starts to suck not just air, but also the oil. The oil becomes the fuel...so even with released accelerator, the engine speed will be increasing, increasing, to the point when the pistons and valves will meet, and kick out the engine block head...
2. when the bearing crashes, the fan of turbo will hit the wall of turbo. The fan will be destroyed to tiny parts, and these will be sucked in by engine, causing the pistons and valves crash...
take care...