[ItsmeX5]

Depends what you look at. I usually change mine initially at the 60k mark then again at 100k and have never owned a vehicle much passed that to pass it again. As easy it is to change them in these cars I would do it if I were at you’re mileage

Edit: misread your post. You changed plugs 30k miles ago I would not change them again. Coils if original would be about time