Another poster mentioned wheel bearings, and I got to thinking...

Are wheel bearings a regular maintenance item on the ML ? Mine is a 99 ML430 and for the life of me in the 240,000 miles I have had it, I don't think they have ever been replaced.

What gives........I know on my 75 CJ5, repacking wheel bearings is a regular ritual every couple of years........does the ML have a different type of wheel bearing setup that requires no maintenance ?