To add to DOC, to do the rear rotors, you need not take off the bearings or hubs. They are floating rotors.

The fronts do have to be taken apart. The rule of thumb on the front is what I call 0. That is where there is no play, but NO PRELOAD on the bearings.

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Benzmac:
Donnie Drummonds
ASE CERTIFIED MASTER AUTO TECHNICIAN
MERCEDES SPECIALIST 11 YRS