Calibrating tires on 2003 Mercedes-Benz SL500

If I change my rear tires do i have to get my automobile recalibrated?

Asked by for the 2003 Mercedes-Benz SL500
If you change the size in any way, yes you will need to have the computers re-set to compensate for the change in tire size. If you stick to the exact stock specifications then no, a re-set is NOT needed.