Is your Yaris engine quiet?

[andy64]

I own 2012 Yaris (current 11k km). From the new I hear noisy metallic tick from engine (look as valve or piston slap or ...etc.). I notice it at a warm engine (staying outside of car). I raised this problem at service but the answer is that is from injectors, and all VVt engines got it. I cant found any working (idling Yaris) to compare but my grandson bought Mazda2 . His engine is very quiet and not any metalic ticking at idlee
At forums and YouTube I found many similar entries -lot with ..as in normal and do not worry- but many... as it is Toyota engines issue. Some participants (not Yaris )fight with Toyota services by years and many complain that normal Injectors noise is a standard blame by Service. Also Toyota do not like fix it states that it not a reliability problem.
I do not know . I still got a lot of warranty -but also I worry what would be after i. In Australia service is extreme costly and also -compare to USA -our voice may be not so strong (exmp: last Toyota recall for power steering omits Australia??? ...
Have you got similar noise?
Thanks friends.