I have a 2020 XF Sportbrake 3.0.
I took it in originally to resolve what I thought would be an engine mounting issue: When I go over a speed ramp (its also noticeable on certain undulations/bump, but easy to reproduce over a speed ramp) I get a secondary "bounce/bump". They have replaced the upper damper mountings/engine mounts/gearbox mounts and said it was cured. I have just picked up the car and it is exactly the same. They are saying that it is a characteristic of the car, others are the same............I would be grateful if any of you could contribute to this theory. It has taken them 2 months to get this far! However, I now have the vibration you refer to: vibration at light throttle load, any gear, at 1600-1700 rpm. I have yet to start the ball rolling to resolve this new issue, along with the original one.
Any contribution/help very much appreciated.
Neil