My 2018 450 has the back seat package and it came with two brand new pillows for the rear headreasts. They were in the trunk in sealed plastic, apparently the first owner never used them. I didn't install them because they block some of the view out theh back.

I did however purchase a 20 buck generic neck support from Amazon that I put on my seat during long road trips and it makes a huge difference for me. Now afer all this time I though, maybe there is a way to give the OEM pillows some use. The front headreasts don't have the two preassure pins (or whatever those are called) to clip the OEM pillows on. But I thought to ask. Maybe someone here has done it.

Thanks

 

No, they won't work. I also have one of these still in factory sealed plastid and if I could install them on the front seat I would have done that already. I've searched for aftermarket solution but nothing seemed convincing or premium as factory, especially for my semi-aniline interior. Too bad the W222 doesn't have front seats neck support.