Hi there!

I have been a happy owner of a MY `18 3.0 SC AWD S Sportbrake for two months now. I really enjoy the combination of the 3.0 SC engine with 8hp ZF gearbox.
Most of the time it feels really smooth but whenever I'm driving exactly at 1400 RPM it seems to struggle with that engine speed. It is that kind of feeling whenever you try to drive a small displacement car under a hill with too high gear selected.
Its perfectly fine before 1400 RPM and above 1500 RPM. Problem exists on each gear.

Do you think this is something that I should worry about? Has anybody experienced similar issue? Or maybe it is the "feature" of this engine?

 

After a fair bit of digging I've found that this is somehow known issue: https://www.jaguarownersclub.com/for...ine-vibration/
Does anybody have an idea what might be the root cause of those vibrations?