 My ML350 ruined a set of tires in 10,000 mile.  The dealer says I didn't rotate enough.  They were rotated and balanced at 5,000   at 10,000  at 15,000 at 20,000. I think the all wheel drive is eating the tires. My dealer won't do anything, no other dealer will do anything.  So, at 30,000 miles, I'm losing $7,000.00 just to get rid of this lemon.  Pretty sad.  I've had other Mercedes, but this piece of junk is my last.  This vehicle vibrates like a piece of junk.  I'm embarrased for M.B.   They should be ashamed.