The image attached looks similar to the one in the XF
but the fitment page on autozone did not have Chrysler or MB on the list of vehicles it would be compatible with.

if you can’t find an OEM Lighter socket anywhere, then you may be well served to purchase it for $20 bucks and give it a shot.
$20 is less than the price of a good quality medium pizza

if it works let us know
hope it all works out for you