My message came on when I only had 16,000 miles and way under the 2 year time period so I made an appointment at my local MB dealership. The service rep looked at my mileage and told me that it wasn't needed at this point and I could wait until closer to the mileage marker and not the time marker so I left. I went back in a few months later at around 17000 miles and had it changed out. They reset the timer when it was serviced.
Paul
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