Oh, for Petes sake, DON'T reset it! This car has the Maintenance Commitment Plan, so MB will pay for the FSS services. If you reset it, it will be that much longer (about 10,000 miles) before the thing will call for a FSS service. You'll be ripping yourself off if you reset it. I wouldn't complain about the miles remaining on FSS staying the same, it's a blessing in disguise.