I did an early oil change also at 2500 miles.
Labor ($91/hour). . . $16.50
Parts (filter and o-ring). . . $13.08
Oil (6 quarts Castrol Syntec). . . $45.00
Sales tax. . . $3.82
Total. . . $78.40
Filters can be purchased at most any parts store. The Advanced Parts store near me has them. Oil can be purchased at discount or warehouse stores, parts stores or an oil distrubutor. You will need an MB filter wrench which should cost about $8. A Topsider or similar syphon type device makes the change easier, since you can suck the oil out of the dip stick tube, instead of having to remove the belly pan under the engine. Also, I have heard the threads in the oil pan are easy the strip. MB techs say the Topsider will remove more oil than draining due to the location of the drain. Topsiders can be purchased at boating and marine stores.[/list]