I don't have a Merc yet, but I have an Audi, a VW and a Saab. For quality service I go to Athens Import. Look at the cars parked in their lot you will know you've come to the right place. They always have many Mercs, BMWs, VWs, Porsches, Land Rovers, Jaguars for service there. Give them a call 706-353-3880.