Hello everyone. I'm new here and also one year owner of my first Toyota - Auris TS 2017 1.6 97kw, now 65k kms. I bought the car from Toyota authorized dealer with full service history. Immediately after buying I changed the Oil to 5w30 and noticed some weird rattle in rpm range cca 1000-1700. So I performed another Oil change to Eneos 0w20 with no luck. Then I changed all spark plugs (denso oem). All filters also changed.
Can someone help where to look next? Below I attached links to video. The sound is hearable both in neutral and shifted. The car performs great since I got it, fuel consumption still the same, Oil consumption simply zero
Thank you everyone for help, answers, opinions...
EDIT: I also have to mention that the car was checked by three Toyota mechanics, two said this is normal, third one said not normal and to look under valve cover - I'm not willing to pay them. Techstream diag is without any error codes.