I took my 2000 ML320 in to my local Mercedes dealer for service when the FSS (little wrench) symbol appeared in my odometer (about 68,000 miles). When I told them to perform all required services except change the engine oil and oil filter, which I now want to do myself, they wouldn't reset the FSS indicator. Now every time I start the car I see it flashing, warning me that service is overdue. Is there any way to reset it yourself? Thanks.