Originally Posted by engatwork

That is the reason I won't own a 4matic, especially considering the non serviceable front drive shaft design on those applications.

I'm sitting here wondering if the road conditions have something to do with the shorter life span. I don't remember ever changing them on the first '14 GLK350 and it is at 330k miles now. I'll have to look at them next time it is int he shop. The majority of those miles were on our very smooth Interstate 16 between Macon and Savannah.