Where does it say 2k mile Dif change?
And the disagreement here stems from the fact that if you follow those instructions on the windshield sticker and look up "further instruction" using the '15 or '16 "Service Booklet", there is no mention that vehicles with the electronic LSD (option code 467) need the service.
This can easily be a typo in the service booklets for '15 and '16 that was then rectified in '17 (as pictures earlier show the difference).
Or it could be that the sticker on the windshield is a generic sticker put on all AMG vehicles and the specific needs of the car are outlined in the service booklet and with the techs that run your VIN at the dealership.











