Do you hear/feel any other vibrations coming from the front right corner? Your issue is most likely due to a bad engine mount. It's a known problem on the F48/F39. Mine went at about 38k miles so if yours is already past the 40k mark chances are your mounts are gone. Might wanna try opening up the engine and taking a look at the mounts and see if they're done for. Mine went at around 40k miles and several other forum members had theirs gone at around 40k-60k too (one even had it go at just 18k on the thread I linked below!) so if yours is already past the 40k mark chances are your mounts are gone.
This is what a bad engine mount would look like:
https://f48.bimmerpost.com/forums/sh...87&postcount=6
Hope you get your problems sorted and wish you many more happy miles in your X1
