I reckon it started after changing oil. Most probably previous oil was 3W30 whereas now I put 3W40 after mechanic’s suggestion. I followed all above recommendations and at the the moment oil levels are okay even the coolant. All gadgets shows okay - no error sign ever since I bought her at 92k km (now is almost 96k km)
But when I throttle above 3000 rpms for a second I can see white smoke from mirror

. And then disappears (this might be also weather related as it is getting colder in Sydney recently). Burning smell almost disappeared since that day but still I can feel very little bit of smell. Strangely mechanic says it is all good, don’t worry

(but I am not sure how he is familiar 4.8is E53 series - as this is rare car on the market atm. Members of this form has more accumulated wealth of knowledge than any mechanic

)
My biggest fear is VSS failure but I don’t mind - will get it fixed once it happens. Just want to observe it sooner rather than later. But I also don’t wanna drive it below 2000 rpms everyday - so boring when you have a monster engine but you can’t put leg on the pedal confidently
Attached a picture from weekend drive (250km distance traveled in one go) exclusively for you guys.
Have a nice week everyone. Thanks for great advice (you can follow her on instagram - just search for number plate lolz)