Both rear tires had excessive wear on the inside and had to replace them, while plenty of rubber on the outside.
Seems like alignment issue: where to find factory spec for E63S 2014 wheel alignment?

 

Just got the same call from the dealer on a 2016 Wagon - working on it but if anyone has the proper spec and procedure for alignment, or if this is "normal" (God I hope not!) for these cars, do chime in please. Headed over later this afternoon to 'discuss'. My dealer did an alignment for me at 15k miles, now, 8k miles later, the inside rears are worn to cords? I'm 99% sure they were new tires prior to the car being delivered to us too. Only has 23k mi on it now.